nuclear-news

The News That Matters about the Nuclear Industry Fukushima Chernobyl Mayak Three Mile Island Atomic Testing Radiation Isotope

  • Home
  • 1 This Month
  • ACTION !
  • Disclaimer
  • Links
  • PAGES on NUCLEAR ISSUES

The climate crisis is heating up nights faster than days in many parts of the world

Global heating warming up ‘nights faster than days’

Effect seen across much of world will have profound consequences, warn scientists .   https://www.theguardian.com/environment/2020/oct/01/global-heating-warming-up-nights-faster-than-days   Damian Carrington Environment editor @dpcarrington, Thu 1 Oct 2020 09. The climate crisis is heating up nights faster than days in many parts of the world, according to the first worldwide assessment of how global heating is differently affecting days and nights.

The findings have “profound consequences” for wildlife and their ability to adapt to the climate emergency, the researchers said, and for the ability of people to cool off at night during dangerous heatwaves.

The scientists compared the rises in daytime and night-time temperatures over the 35 years up to 2017. Global heating is increasing both, but they found that over more than half of the world’s land there was a difference of at least 0.25C between the day and night rises.

In two-thirds of those places, nights were warming faster than the days, Continue reading →

October 3, 2020 Posted by Christina Macpherson | 2 WORLD, climate change | Leave a comment

‘We have a chance’: David Attenborough says $500 billion needed to save earth

‘We have a chance’: David Attenborough says $500 billion needed to save earth,  https://thenewdaily.com.au/news/world/2020/10/01/david-attenborough-un-summit-climate-change/ Attenborough: $500 billion a year for natureBritish broadcaster David Attenborough led a call from conservation groups on Wednesday for the world to invest $500 billion a year to halt the destruction of nature. Olivia Chan reports., Matthew Green

British broadcaster Sir David Attenborough is leading a call from conservation groups for the world to invest $US500 billion ($A700 billion) a year to halt the destruction of nature.

Sir David, whose latest film documents the dangers posed by climate change and the extinction of species, issued the call as the United Nations convened a one-day summit aimed at galvanising action to protect wildlife.

“Our natural world is under greater pressure now than at any time in human history, and the future of the entire planet – on which every single one of us depends – is in grave jeopardy,” Sir David, 94, said in a statement on Thursday (Australian time).

“We still have an opportunity to reverse catastrophic biodiversity loss, but time is running out.”

Opening the summit in New York, UN Secretary-General Antonio Guterres warned that a million species were at risk of extinction and that climate change and the loss of biodiversity were “destroying earth’s web of life”.

“We are part of that fragile web and we need it to be healthy so we and future generations may thrive,” Mr Guterres said.

The call to redirect financing away from fossil fuels and other polluting industries and into locally led conservation was launched by environmental group Fauna & Flora International and backed by more than 130 organisations.

The world spends an estimated $US80-90 billion ($A112-125 billion) on conservation each year, but studies show that hundreds of billions of dollars may be needed to save ecosystems from collapse.

Britain, Canada and others joined the European Union on Monday in pledging to protect 30 per cent of their land and seas by 2030.

UN officials hope to secure a global agreement on that target at a major round of negotiations on biodiversity due to take place in China in 2021.

October 1, 2020 Posted by Christina Macpherson | 2 WORLD, climate change, environment | Leave a comment

Accelerating rate of ice sheet loss from Greenland

Greenland ice sheet loss already ‘unprecedented’ and set to accelerate 

more https://www.abc.net.au/news/science/2020-10-01/greenland-ice-melting-at-a-rate-unmatched-in-12000-years/12705230

 Given our lag in getting emissions down since then, Professor Steffen said he doesn’t think 1.5C is still realistically achievable, but keeping warming below 2C is.  ABC Science

 By environment reporter Nick Kilvert, 30 Sept, 20

Melting of the Greenland ice sheet has hit a rate unmatched in the last 12,000 years and is accelerating, scientists have confirmed.

Key points:

  • Worst-case predictions say Greenland will be melting 600 per cent faster than its present rate by the end of the century
  • That alone could add around 30 centimetres to sea levels, without accounting for Antarctic melting
  • Cutting our emissions rapidly buys us time to adapt to rising sea levels

Research published in Nature today predicts that the Greenland ice sheet will be melting by as much as six times its current rate by the end of the century if we don’t get emissions down.

On the flipside, if we can achieve the best-case emissions reduction scenario forecast by the IPCC we can limit its increasing melt rate to around 40 per cent greater than its present rate.

Last week China — the world’s biggest polluter — committed to achieving net-zero emissions by 2060.

While he is cautiously optimistic, Professor Steffen said what is equally important is how they get there.

Currently China are responsible for about a quarter of the world’s greenhouse gas production, and if they begin rapidly cutting emissions from today right through until 2060, then that is significant, he said.

But if they continue burning fossil fuels and make rapid cuts at the last minute, the damage will already be done.

“We use what’s called the carbon budget approach to estimate how much temperature is going to rise — that is the cumulative emissions between now and net-zero [emissions],” Professor Steffen said.

“If [China] get their emissions down really quickly, say by 2040, that’s a big difference between whether they coast to 2050 and then cut them over a decade.”

On the flipside, if we can achieve the best-case emissions reduction scenario forecast by the IPCC we can limit its increasing melt rate to around 40 per cent greater than its present rate….

As the earth emerged from the last Ice Age around 11,000 years ago, the Arctic experienced a warm period or thermal maximum between about 10,000 and 7,000 years before present.

Researchers presumed that the rate of melting of the Greenland ice sheet in that period was higher than it is today.

Instead, they found that over the last 20 years, the southwestern Greenland ice sheet where this research was focussed, has been losing ice at an rate of about 6,100 billion tonnes per century on average — around 100 billion tonnes more than at its previous historical peak, according to author Jason Briner from the University of Buffalo.

“Our results suggest that yes, this century we will experience ice-loss rates not just similar to those in the past but exceeding those of the past, even under strict carbon emissions scenarios,” Professor Briner said.

Worst-case scenario would see 600% increase in melting this century

As well as comparing present-day melting with the past, they looked at how different global greenhouse gas emissions trajectories would impact melting over the coming century.

They modelled the IPCC’s best-case emissions scenario, called Representative Concentration Pathway (RCP) 2.6, and the worst-case emissions scenario called RCP 8.5.

Under RCP 2.6, emissions are drastically reduced starting now and we achieve net-negative emissions this century. That is, we get our emissions to zero and also draw greenhouse gases from the atmosphere through technology or by boosting natural sinks like forests and blue carbon.

Under RCP 2.6 we limit global average warming to within 2 degrees Celsius by 2100.

On the other hand, under RCP 8.5 we continue burning fossil fuels as per usual, making no substantial efforts to reduce our greenhouse gas emissions through to 2100.

Under the RCP 2.6 scenario, their models forecast that melting of the southwestern Greenland ice sheet would increase to around 8,800 billion tonnes per century on average by 2100 — about a forty per cent increase on today’s rate.

But under the worst-case RCP 8.5 scenario, they forecast the southwestern Greenland ice sheet could be losing up to 35,900 billion tonnes per century — an increase of nearly 600 per cent on today’s melting rate.

Although their study area didn’t encompass the entire ice sheet, Professor Briner said Greenland tends to melt fairly uniformly.

“Based on reconstructions of ice sheet changes over the past several decades, it has been shown that when the ice sheet loses mass in our study area, it loses mass across its entire surface,” he said.

“When rates of ice loss are high across our study area, they are high across Greenland.”

The study is an important demonstration of the difference that we can make by cutting emissions, according to David Etheridge from the CSIRO’s Climate Science Centre.

“The range of predictions shows a high sensitivity to emissions scenarios with the possibility to limit ice loss with low emissions,” Dr Etheridge said.

‘We still have time’ to slow down sea level rise

Modelling sea level rise was outside the bounds of this study, but the researchers tentatively suggest that the worst-case scenario melting from the southwestern Greenland ice sheet would add around 10 centimetres to sea levels this century.

If that was scaled to the entire ice sheet, that would likely be “doubled or tripled”, Professor Briner said. And that’s without accounting for any melting from the Antarctic ice sheet.

Research published earlier this month in Nature found that the Antarctic ice sheet will add 1.3 metres to sea level for every degree of warming up to 2 degrees Celsius above pre-industrial levels.

That research found that we have locked in at least two-and-a-half metres of sea level rise from Antarctica, regardless of what happens with our emissions from now on.

But it’s the rate at which the melting happens that we have some control over and is the crucial issue, according to Will Steffen from the ANU’s Climate Change Institute.

“We can still influence the rate at which Greenland melts and thus the rate that sea level rises. That’s the important message,” Professor Steffen said.

“We still have time to adapt if we slow it down.”

Rather than needing to adapt and shift coastal communities over decades, we can buy ourselves a century or more if we act to get emissions down immediately, Professor Steffen said.

When countries signed up to the Paris Agreement in 2015, the aim was to keep warming to 1.5C.

Given our lag in getting emissions down since then, Professor Steffen said he doesn’t think 1.5C is still realistically achievable, but keeping warming below 2C is.

October 1, 2020 Posted by Christina Macpherson | ARCTIC, climate change, oceans | Leave a comment

The Arctic Has Entered A New Climate State

The Arctic Has Entered A New Climate State, Radio Ecoshock  25 Sept 20  Ice is rapidly disappearing from both Poles. Two polar ice experts report latest science. From the U.S. National Center For Atmospheric Research in Colorado, Arctic scientist Laura Landrum: in 2020, the Arctic has reached a new climate state. Thomas Slater from Leeds University UK reports ice loss from glaciers has surpassed the worst case scenarios. Manhattan-size chunks falling away, other ice shelves shatter in unnatural heat and warmed-up seas.

Listen to or download this Radio Ecoshock show ………..

The new water added to the ocean runs away to every country with a sea coast. It runs up estuaries, eats away coastlines, and piles up in every hurricane, high tide and storm. Slater agrees with NASA that in some cases, there is no way to stop these mountains of ice from becoming sea water. This massive change has happened. The tipping point for a grand melting of the world’s second biggest pile of ice, Greenland, was 20 years ago. Like light from the stars, rising seas just take a while to reach us.

Hot in the cold news, this: the Arctic’s largest remaining ice shelf lost a very large chunk of ice, like the volume of mountains, broken away in North Eastern Greenland – floating off into the Atlantic are new melting ice islands twice the size of Manhattan. I won’t try to pronounce the complicated Nordic name. Scientists also call it “79N”. According to satellite images, a portion of the shelf about 110 square kilometers – that’s 42 square miles of thick glacier – just shattered. It fell apart this summer.

This follows absolute record hot summers in the Arctic in 2019 and 2020, on top of the whole region warming around 3 degrees C since 1980. The far north has already gone past 3 degrees C of warming, way beyond the supposed safe line of 1.5 or even 2 degrees C. demanded by the Intergovernmental Panel on Climate Change, and agreed by most governments under the Paris Accord of 2015. The Arctic is already soaring into dangerous warming, and the ice is responding at rates older scientists would never have believed possible. ………….

the change in sea ice cover is,  Dr. Laura Landrum, scientist NCAR   says, the single largest driver of big climate changes not just in the Arctic, but around the world. Of course our emissions are forcing that change in sea ice cover, by warming not just the atmosphere, but the seas as well.

Now in the Arctic, the traditional expectations for the seasons no longer work. Aboriginal people can no longer hunt at the same times, and animals are confused or spending energy adapting as they can. Plant life will shift. So will insects.

Plus: changes in the Arctic will alter teleconnections to cycles, weather and variability further south. The “new Arctic climate” does not stay in the Arctic. Already we have observations, from Jennifer Francis at Rutgers, that reduction of Arctic sea ice and dramatic changes to the behavior of the Jet Stream further south may be linked. Dr. Landrum agrees. Another scientist on Radio Ecoshock, Dr. Ivana Cvijanovic found evidence of a teleconnection between changes in the Arctic and rainfall in California.  …….

There is no going back to the old Arctic. Summer sea ice will not return to levels seen in the 1950’s, when a crossing of the Northwest passage was a major newsworthy expedition requiring ice-breakers. Now individuals in yachts travel across the Canadian Arctic by themselves, while tankers and freighters move in the Arctic Ocean above Siberia, significantly shortening the route from China to Europe. From shipping to hope for more oil and gas, big business is betting the new Arctic climate is here to stay.

Will the growing season in the Tundra, formerly about 60 days, get longer? Could the Boreal forests begin to extend into the Arctic? In Siberia, Northwest Canada, and Alaska the treeline extends into the Arctic Circle, (about 66 degrees North). Also, if winters get shorter, that could mean an increase in Arctic wildfires. Even “more” rain does not necessarily mean more rain in the fire season. Rain may not stop wildfires, especially as Mike Flannigan told us that thin northern soils can dry out and be ready to burn just 3 sunny days after a rainfall. ……

THOMAS SLATER – GLACIER MELT HIGHER THAN WORST CASE SCENARIO,  Dr. Thomas Slater, University of Leeds    We are trying to look forward in time, to see what the force of rising seas will do. For me, one of the clearest examples comes with higher storm surges, like the dramatic flooding of lower Manhattan during Hurricane Sandy in October of 2012. Are we already at a point where Polar ice loss is bringing more intense disasters?

Discussing an article in Nature published August 13, Grace Palmer in scitechdaily quotes scientist Marco Tedesco saying the percentage contribution of Greenland to sea level rise could increase from 20 to 25 percent now, to 30 or 40 percent by the end of the century.

We begin our state-of-the-glaciers talk with the sad example of the Okjökull Glacier (simple known as Ok) in Iceland. It is the first world glacier declared “dead” due to climate change. On that site is a plaque reading:

A letter to the future

Ok is the first Icelandic glacier to lose its status as a glacier.
In the next 200 years all our glaciers are expected to follow the same path.
This monument is to acknowledge that we know
what is happening and what needs to be done.
Only you know if we did it.

……….. , our climate situation is even worse than the best scientists thought. NASA has a mas balance graphic showing Greenland Ice Loss 2002-2016. That graphic reveals a steady staircase down in the balance of Greenland ice.

THE BIG TWO ON SEA LEVEL RISEWhen it comes to sea level rise, two key points:

1. more sea level rise is now coming from glacial meltwater than thermal expansion of warming seas

2. about 60% of that added sea level is coming from Greenland – more than from Antarctica……. https://www.ecoshock.org/2020/09/the-arctic-has-entered-a-new-climate-state.html

September 28, 2020 Posted by Christina Macpherson | ARCTIC, climate change | Leave a comment

Satellite imagery shows North Korea’s Yongbyon Nuclear Center is drying off after breaching of overflow dam

North Korea’s Yongbyon Nuclear Center: Drying Off, 38 NORTH BY: PETER MAKOWSKY, FRANK PABIAN, JACK LIU AND JENNY TOWN, SEPTEMBER 25, 2020   EXCELLENT SATELLITE IMAGERY

Commercial satellite imagery of the Yongbyon Nuclear Scientific Research Center from September 21 reveals minimal damage to the buildings throughout the complex, but notable damage along the river. Moreover, the breaching of the overflow dam, which regulates the water level of the river adjacent to the reactor area, raises a more serious concern about the ability to maintain a steady reservoir of water for the reactors when they may be operating in the future.

Additionally, substantial grain drying activities are observed throughout the complex and nearby town. While this is a common occurrence during the harvest season, the scale of what is taking place is well beyond what has been observed in previous years.

Reactor Area

There are no observable indications that the 5 MWe reactor is operating or that the Experimental Light Water Reactor (ELWR) has been started. Some vehicles are present around the 5 MWe reactor area, but this has become fairly common over the past year.

The typhoons, which recently impacted North Korea’s west coast, have once again shown the vulnerability of the reactors to seasonal flooding. This is despite the numerous measures taken to protect the site, including dredging along the riverbank to build up the embankments.

The eastern end of the reservoir dam has been breached, resulting in a dramatically lower water level behind the dam, a sharp contrast with the previously reported flooding. The reduced water level has left the two pumphouses servicing the reactors “high and dry,” with the water level above the dam down significantly and the intake cisterns exposed.

The inability to maintain a stable reservoir level, regardless of weather conditions, poses a potential problem for continuous reactor operations if the 5 MWe reactor is restarted or the ELWR is brought online.

Uranium Enrichment Plant (UEP)

At the Uranium Enrichment Plant, what appeared to be work on the cooling units in July to repair, replace or remove old units seems to have been suspended as post-typhoon clean up and repairs and harvest-related activities are currently underway.

Construction and clean-up on the nearby causeway and bridge continues. It appears that sections of the two man-made islands and channels that were damaged from previous flooding are undergoing repairs……. https://www.38north.org/2020/09/yongbyon092520/

September 28, 2020 Posted by Christina Macpherson | climate change, North Korea | Leave a comment

Trump Appoints Pair of Climate Science Deniers to National Oceanic and Atmospheric Administration (NOAA While Climate-Fueled Fires and Storms Rage

Trump Appoints Pair of Climate Science Deniers to NOAA While Climate-Fueled Fires and Storms Rage DeSmog Blog, By Dana Drugmand and Ben Jervey • Thursday, September 24, 2020

The White House has made a pair of controversial appointments to the National Oceanic and Atmospheric Administration (NOAA), positioning within the climate science agency two individuals who consistently misrepresent and disagree with the scientific consensus on various issues concerning climate change and who have notable ties with conservative think tanks that disseminate climate science denial.

As the Washington Post first reported this week, President Trump is naming Ryan Maue to the role of chief scientist at NOAA, a position that will help enforce its scientific integrity process. Maue is a meteorologist who has downplayed the degree and impacts of global warming, particularly ties between extreme weather events and human-caused climate change, and he has a past connection with the Cato Institute.

Maue’s appointment follows the White House’s appointment last week of climate science denier David Legates as NOAA’s deputy assistant secretary of commerce for observation and prediction. Legates refutes the well-established scientific understanding that human activity is causing climate breakdown and he is affiliated with the Heartland Institute, which has and continues to traffic in climate denial and disinformation…….

These appointments of climate science deniers to NOAA — the agency charged with monitoring changes in the climate system and informing Americans on this science — come at a time when there is rising concern over the Trump administration’s embrace of pseudoscience and apparent attempts to interfere with or attack nonpartisan scientific and public health agencies like NOAA, the Environmental Protection Agency (EPA), the Food and Drug Administration (FDA), and the Centers for Disease Control and Prevention (CDC). A study published in April surveying federal scientists found a perceived loss of scientific integrity under the Trump administration.

The new NOAA appointments also arrive as climate-fueled disasters such as unprecedented wildfires and a litany of tropical storms and hurricanes have roiled the nation. It is therefore worth taking a closer look at the backgrounds of these two individuals questioning mainstream climate science………….https://www.desmogblog.com/2020/09/24/trump-noaa-david-legates-ryan-maue-climate-denial?utm_source=DeSmog%20Weekly%20Newsletter

 

September 26, 2020 Posted by Christina Macpherson | climate change, politics, USA | Leave a comment

Small modular nuclear reactors for Canada? – useless, expensive, untested, and a wasteful distraction

NB Media Co-op 22nd Sept 2020,Premier Blaine Higgs has endorsed so-called “small modular nuclear reactors” or SMRs. SMRs represent an untested technology but what we know on the basis of technical characteristics and historical precedent is that they will be expensive and any electricity they generate will not be economical. The nuclear industry is pushing small reactors because large reactors are simply not economical. Constructing nuclear plants is just too expensive—as Ontario’s government found out after its call in 2008 for bids to build two more reactors at the Darlington site.
Atomic Energy of Canada Ltd. reportedly bid $26 billion for two 1200-megawatt CANDU reactors and the province abandoned its nuclear plans. Since then, the business case for nuclear power has become much worse as the cost of renewables has fallen dramatically.

https://nbmediacoop.org/2020/09/22/no-business-case-for-new-nuclear-reactors-in-new-brunswick/

Sierra Club Canada (accessed) 23rd Sept 2020, No plan that gets us to net zero in a reasonable time frame includes new  nuclear reactors. Nuclear is far too slow and expensive to deal with the climate emergency. Just like fossil fuel energy, nuclear produces wastes that pose unacceptable health hazards and economic costs.
Radioactive wastes from nuclear power plants have been piling up for over 70 years. Canada still has no long-term strategy to deal with either nuclear or fossil fuel wastes. Building Canada back better means major investments in conservation and renewable energy, providing hundreds of thousands of good green jobs. Global investment in renewable energy and newly-installed renewable capacity has far surpassed nuclear in recent years. Investors are  smart: they put their money where it will yield good returns. https://www.sierraclub.ca/en/new-nuclear-is-not-part-of-path-to-net-zero

September 24, 2020 Posted by Christina Macpherson | business and costs, Canada, climate change, Small Modular Nuclear Reactors, wastes | Leave a comment

Marshall Islands in danger of being overcome by rising sea levels

Star of the day: David Kabua, President of the Marshall Islands, believes his territory will disappear under rising sea levels,       https://pledgetimes.com/star-of-the-day-david-kabua-president-of-the-marshall-islands-believes-his-territory-will-disappear-under-rising-sea-levels/ by Bhavi Mandalia, September 22, 2020   The Marshall Islands facing rising waters. (HILARY HOSIA / AFP)

David Kabua, 71, president for nine months of the Marschall Islands is worried. This small confetti of land lost in the Pacific Ocean, 180 km², perched just two meters from sea level, is threatened by rising waters. There is not much on the 30 atolls that make up the archipelago, nothing to covet, nothing to export, no natural resources, only small farms, fishing boats and a huge radioactive waste storage site. , memory of the American nuclear tests of the 1960s.

This little piece of land, so coveted during the wars for its strategic location, no longer has any leverage to attract attention. And yet, it will soon no longer appear on the world maps. This is the warning cry launched by David Kabua on Monday September 21 at the UN, a simple cry: “My country will disappear if the world does not keep its promises, those made during the Paris agreement.” He recounted the impact of climate change, the increasingly devastating tides, population evacuations, the intense droughts which generate another plague: swarms of mosquitoes carrying various diseases. And then there is the money that is lacking to build the necessary infrastructure to protect its 75,000 inhabitants. Money promised five years ago, and which does not arrive. Finally, there is worse:“The fact, he said, that industrialized countries continue to finance fossil fuels, oil, gas and coal. We are doing our part, but alone we can do nothing. “

David Kabua addresses the United Nations. The UN that the Marschall Islands joined in 1991 but that they could well leave, in fact, not voluntarily, but by force of circumstances, because the atolls will end up submerged. So he concluded by asking: “Will we still be here for the UN’s 100th anniversary in 2045? How about you? Are you going to help us keep our islands in this world?” In the assembly, the question created a long silence. David Kabua, for his part, has nothing more to give than a warning, a prophecy for all. We know. But we look elsewhere. Hope does exist, however, it is in the motto of the Marschall Islands: “Achievement through joint effort“. And we have 25 years ahead of us.

 

September 24, 2020 Posted by Christina Macpherson | climate change, OCEANIA, oceans | Leave a comment

The pandemic is a massive thrat – so is climate change

 

The climate crisis is still a massive threat — even in the middle of a pandemic, https://www.cbc.ca/news/politics/pandemic-climate-change-trudeau-freeland-1.5727210

The federal government shouldn’t feel it has to choose between addressing one crisis or the other,  Aaron Wherry · CBC News ·  Sep 17, 2020   The profound and urgent threat of climate change still hangs over Prime Minister Justin Trudeau’s government — quite literally this week, after smoke from the wildfires in California and Oregon spread across the continent, casting a dull haze across the skies.Questions are being asked now about how quickly or enthusiastically the Liberals should turn their focus back to that challenge. There is, after all, the small matter of an ongoing health emergency to tackle.

But the unfolding climate emergency will not get any easier to deal with over time — and the Liberals might regret missing any available opportunities to make meaningful progress toward the mid-century goal of net-zero emissions.

Although it’s not clear if the government’s actual plans for the next year have changed (or if it’s merely the official messaging about those plans that has been adjusted), it has shifted its publicly stated focus conspicuously to the immediate crisis posed by COVID-19.

[Controlling the spread of COVID-19] is our government’s 100 per cent priority,” Finance Minister Chrystia Freeland said Tuesday. “It is what we are overwhelmingly focused on.”

“I think we recognize and have always recognized that dealing with the pandemic is job one,” Trudeau said Wednesday.

Pandemic pessimism

After the Liberals’ heady talk in late summer about a pivotal opportunity for ambitious change, that sounds like a course correction. If so, it’s a concession to simple reality.

While a moment could be emerging when political circumstance and necessity align to create a rare opportunity for real change, it would be hard for any government to do much of anything if COVID-19 is allowed to run roughshod. COVID-19 is also (understandably) the central preoccupation of most Canadians: according to a survey by Abacus Data, 45 per cent of Canadians still believe the pandemic will get worse before it gets better.

Parents nervously sending their children back to school might not be terribly interested right now in hearing about the better world that might emerge in the wake of COVID-19 — and they might be very inclined to punish any government that seems to take its eye off the immediate threat.

As much as combating climate change and building a clean economy can still seem like optional pursuits — things that would be nice to have rather than necessary — Liberals might worry about seeming to have let “green” interests hijack the moment.

Outside government, talk of a green recovery began soon after the pandemic’s arrival. But it would be a mistake to dismiss the idea as a passing fad; while Abacus polled fear about the pandemic, it also found that concern about climate change remains high, particularly among Liberal, NDP, Bloc Québécois and Green voters.

While Gerald Butts, a former senior adviser to Trudeau, counselled progressive policy wonks on Monday to mind the real pandemic-related anxieties of voters, he also was part of a panel of experts that laid out a plan Wednesday calling for $55 billion in green spending over the next five years, largely focused on retrofitting buildings, expanding the use of zero-emission vehicles and accelerating the development of clean energy.

But the task force also pointed out that such investments would be in line with plans being pursued by Germany, France and the United Kingdom. If Joe Biden is elected president of the United States in November, his plans could include as much as $2.7 trillion in green spending.

It’s not an either-or choice

Not all of the problems COVID-19 has exposed or created can be solved by green spending — and it can’t be said that this government has demonstrated a peerless ability to manage multiple major priorities at once.

But a government interested in the long-term goal of a clean economy should still be able to find opportunities to do that while simultaneously addressing the short-term needs of a battered economy. The Liberals themselves did that in May when they offered funding to clean up abandoned oil wells and asked large companies applying for pandemic-related loans to provide climate-risk disclosure.

It also shouldn’t be forgotten that the Liberals already had a list of green things to do before the pandemic arrived. The platform that Trudeau ran on in the fall of 2019 promised new support for retrofits and zero-emission vehicles, a tax cut for companies that develop clean technology, climate change accountability legislation and new flood-mapping (not to mention that plan to plant two billion new trees).

A global pandemic has complicated everyone’s plans for 2020. But Parliament should return next week with the ability to resume something resembling normal proceedings. And not even a global pandemic can fully excuse a government from doing important work.

Climate change as an economic issue

As if to reassure the proponents of a green recovery that something is in the works, Environment Minister Jonathan Wilkinson was one of the four ministers selected to stand behind Trudeau on Wednesday when this week’s cabinet retreat ended. But when Trudeau and Freeland did talk about a green agenda, it was in terms of jobs.

“As we reflect on how to restart the economy, how to create good jobs for now and into the future, obviously the green sector and newer jobs and innovation and clean tech are going to be an essential part of building back better and building a stronger future,” Trudeau said.

An emphasis on jobs could ground the green aspect of the government’s agenda in the most immediate and practical concerns of both nervous families and fretful economists. It also would serve as a reminder that a green recovery isn’t about hugging trees — it’s about the future welfare and prosperity of Canadians.


  • Task force calls on federal government to spend billions on a ‘green recovery’
  • What the Arctic’s rapid transition into a ‘new climate’ looks like
  • Trump, Democrats trade blame as U.S. West Coast wildfires death toll tops 35

A report released by the Institute for Climate Choices today makes the case that reducing emissions and growing the economy should not be treated as mutually exclusive goals — and that Canada’s work of building a clean economy has only begun. If a government wants to build long-term growth, a transition to a low-carbon economy seems like a decent place to start.

No one can dispute the fact that other issues are now demanding the government’s attention: child care, long-term care, inequality, precarious work, a wounded economy and the ongoing challenge of living with the threat of COVID-19. No government would be easily forgiven for ignoring such things.

But until Canada is on a clear path to net-zero emissions, nearly every federal government can be asked whether it has fully seized every chance to combat the climate crisis — a crisis that was worth worrying about before COVID-19 arrived and will still be worth worrying about long after the virus has faded.

September 22, 2020 Posted by Christina Macpherson | Canada, climate change | Leave a comment

Global heating – abrupt changes could bring interconnected tipping points

Cutting greenhouse gas emissions is not a surprising or original solution. But it is our best chance to stop the warning signs flashing red.

The tipping points at the heart of the climate crisis,  https://www.theguardian.com/science/2020/sep/19/the-tipping-points-at-the-heart-of-the-climate-crisis   Michael Marshall, Sun 20 Sep 2020   

Many parts of the Earth’s climate system have been destabilised by warming, from ice sheets and ocean currents to the Amazon rainforest – and scientists believe that if one collapses others could follow.

The warning signs are flashing red. The California wildfires were surely made worse by the impacts of global heating. A study published in July warned that the Arctic is undergoing “an abrupt climate change event” that will probably lead to dramatic changes. As if to underline the point, on 14 September it was reported that a huge ice shelf in northeast Greenland had torn itself apart, worn away by warm waters lapping in from beneath.

That same day, a study of satellite data revealed growing cracks and crevasses in the ice shelves protecting two of Antarctica’s largest glaciers – indicating that those shelves could also break apart, leaving the glaciers exposed and liable to melt, contributing to sea-level rise. The ice losses are already following our worst-case scenarios.

These developments show that the harmful impacts of global heating are mounting, and should be a prompt to urgent action to cut greenhouse gas emissions. But the case for emissions cuts is actually even stronger. That is because scientists are increasingly concerned that the global climate might lurch from its current state into something wholly new – which humans have no experience dealing with. Many parts of the Earth system are unstable. Once one falls, it could trigger a cascade like falling domino

Tipping points

We have known for years that many parts of the climate have so-called tipping points. That means a gentle push, like a slow and steady warming, can cause them to change in a big way that is wholly disproportionate to the trigger. If we hit one of these tipping points, we may not have any practical way to stop the unfolding consequences.

The Greenland ice sheet is one example of a tipping point. It contains enough ice to raise global sea levels by seven metres, if it were all to melt. And it is prone to runaway melting.

This is because the top surface of the ice sheet is gradually getting lower as more of the ice melts, says Ricarda Winkelmann of the Potsdam Institute for Climate Impact Research in Germany. The result is familiar to anyone who has walked in mountains. “If we climb down the mountain, the temperature around us warms up,” she says. As the ice sheet gets lower, the temperatures at the surface get higher, leading to even more melting. “That’s one of these self-reinforcing or accelerating feedbacks.”

We don’t know exactly how much warming would cause Greenland to pass its tipping point and begin melting unstoppably. One study estimated that it would take just 1.6C of warming – and we have already warmed the planet 1.1C since the late 19th century.

The collapse would take centuries, which is some comfort, but such collapses are difficult to turn off. Perhaps we could swiftly cool the planet to below the 1.6C threshold, but that would not suffice, as Greenland would be melting uncontrollably. Instead, says Winkelmann, we would have to cool things down much more – it’s not clear by how much. Tipping points that behave like this are sometimes described as “irreversible”, which is confusing; in reality they can be reversed, but it takes a much bigger push than the one that set them off in the first place.

In 2008, researchers led by Timothy Lenton, now at the University of Exeter, catalogued the climate’s main “tipping elements”. As well as the Greenland ice sheet, the Antarctic ice sheet is also prone to unstoppable collapse – as is the Amazon rainforest, which could die back and be replaced with grasslands.

A particularly important tipping element is the vast ocean current known as the Atlantic meridional overturning circulation (AMOC), which carries warm equatorial water north to the Arctic, and cool Arctic water south to the equator. The AMOC has collapsed in the past and many scientists fear it is close to collapsing again – an event that was depicted (in ridiculously exaggerated and accelerated form) in the 2004 film The Day After Tomorrow. If the AMOC collapses, it will transform weather patterns around the globe – leading to cooler climates in Europe, or at least less warming, and changing where and when monsoon rains fall in the tropics. For the UK, this could mean the end of most arable farming, according to a paper Lenton and others published in January.

Tumbling dominoes

In 2009, a second study took the idea further. What if the tipping elements are interconnected? That would mean that setting off one might set off another – or even unleash a cascade of dramatic changes, spreading around the globe and reshaping the world we live in.

For instance, the melting of the Greenland ice sheet is releasing huge volumes of cold, fresh water into the north Atlantic. This weakens the AMOC – so it is distinctly possible that if Greenland passes its tipping point, the resulting melt will push the AMOC past its own threshold.

“It’s the same exact principles that we know happen at smaller scales,” says Katharine Suding of the University of Colorado, Boulder, who has studied similar shifts in ecosystems. The key point is that processes exist that can amplify a small initial change. This can be true on the scale of a single meadow or the whole planet.

However, the tipping point cascade is very difficult to simulate. In many cases the feedbacks go both ways – and sometimes one tipping point can make it less likely that another will be triggered, not more. For example, the AMOC brings warm water from equator up into the north Atlantic, contributing to the melting of Greenland. So if the AMOC were to collapse, that northward flow of warm water would cease – and Greenland’s ice would be less likely to start collapsing. Depending whether Greenland or the AMOC hit its tipping point first, the resulting cascade would be very different.

What’s more, dozens of such linkages are now known, and some of them span huge distances. “Melting the ice sheet on one pole raises sea level,” says Lenton, and the rise is greatest at the opposite pole. “Say you’re melting Greenland and you raise the sea level under the ice shelves of Antarctica,” he says. That would send ever more warm water lapping around Antarctica. “You’re going to weaken those ice shelves.”

“Even if the distance is quite far, a larger domino might still be able to cause the next one to tip over,” says Winkelmann.

In 2018, Juan Rocha of the Stockholm Resilience Centre in Sweden and his colleagues mapped out all the known links between tipping points. However, Rocha says the strengths of the interconnections are still largely unknown. This, combined with the sheer number of them, and the interactions between the climate and the biosphere, means predicting the Earth’s overall response to our greenhouse gas emissions is very tricky.

Into the hothouse

The most worrying possibility is that setting off one tipping point could unleash several of the others, pushing Earth’s climate into a new state that it has not experienced for millions of years.

Since before humans existed, Earth has had an “icehouse” climate, meaning there is permanent ice at both poles. But millions of years ago, the climate was in a “hothouse” state: there was no permanent polar ice, and the planet was many degrees warmer.

If it has happened before, could it happen again? In 2018, researchers including Lenton and Winkelmann explored the question in a much-discussed study. “The Earth System may be approaching a planetary threshold that could lock in a continuing rapid pathway toward much hotter conditions – Hothouse Earth,” they wrote. The danger threshold might be only decades away at current rates of warming.

Lenton says the jury is still out on whether this global threshold exists, let alone how close it is, but that it is not something that should be dismissed out of hand.

“For me, the strongest evidence base at the moment is for the idea that we could be committing to a ‘wethouse’, rather than a hothouse,” says Lenton. “We could see a cascade of ice sheet collapses.” This would lead to “a world that has no substantive ice in the northern hemisphere and a lot less over Antarctica, and the sea level is 10 to 20 metres higher”. Such a rise would be enough to swamp many coastal megacities, unless they were protected. The destruction of both the polar ice sheets would be mediated by the weakening or collapse of the AMOC, which would also weaken the Indian monsoon and disrupt the west African one.

Winkelmann’s team studied a similar scenario in a study published online in April, which has not yet been peer-reviewed. They simulated the interactions between the Greenland and west Antarctic ice sheets, the AMOC, the Amazon rainforest and another major weather system called the El Niño southern oscillation. They found that the two ice sheets were the most likely to trigger cascades, and the AMOC then transmitted their effects around the globe.

What to do?

Everyone who studies tipping point cascades agrees on two key points. The first is that it is crucial not to become disheartened by the magnitude of the risks; it is still possible to avoid knocking over the dominoes. Second, we should not wait for precise knowledge of exactly where the tipping points lie – which has proved difficult to determine, and might not come until it’s too late.

Rocha compares it to smoking. “Smoking causes cancer,” he says, “but it’s very difficult for a doctor to nail down how many cigarettes you need to smoke to get cancer.” Some people are more susceptible than others, based on a range of factors from genetics to the level of air pollution where they live. But this does not mean it is a good idea to play chicken with your lungs by continuing to smoke. “Don’t smoke long-term, because you might be committing to something you don’t want to,” says Rocha. The same logic applies to the climate dominoes. “If it happens, it’s going to be really costly and hard to recover, therefore we should not disturb those thresholds.”

“I think a precautionary principle probably is the best step forward for us, especially when we’re dealing with a system that we know has a lot of feedbacks and interconnections,” agrees Suding.

“These are huge risks we’re playing with, in their potential impacts,” says Lenton. “This is yet another compulsion to get ourselves weaned off fossil fuels as fast as possible and on to clean energy, and sort out some other sources of greenhouse gases like diets and land use,” says Lenton. He emphasises that the tipping points for the two great ice sheets may well lie between 1C and 2C of warming.

“We actually do need the Paris climate accord,” says Winkelmann. The 2016 agreement committed most countries to limit warming to 1.5 to 2C, although the US president, Donald Trump, has since chosen to pull the US out of it. Winkelmann argues that 1.5C is the right target, because it takes into account the existence of the tipping points and gives the best chance of avoiding them. “For some of these tipping elements,” she says, “we’re already in that danger zone.”

Cutting greenhouse gas emissions is not a surprising or original solution. But it is our best chance to stop the warning signs flashing red.

 

 

 

 

September 21, 2020 Posted by Christina Macpherson | 2 WORLD, climate change | Leave a comment

Global heating is disrupting the ground in Siberia

Bizarre Bumps come up in Siberia,  The tundra climate of Siberia and Russia have been the victim of climate change and the bumps on the grounds bear its scars   https://www.outlookindia.com/outlooktraveller/travelnews/story/70633/siberias-ground-bumps, Trinetra Paul, September 20 , 2020   Over the past few decades, climate change and global warming has had a string of adverse effects on the planet. And the signs of damage are increasing day by day.

Siberia has been facing the wrath of this global phenomenon over the years. Now, the ground bears the scars of climate change.

The Siberian permafrost (or frozen organic ground) is slowly thawing and this is resulting in huge, bizarre bumps on the ground. Many of the craters formed in between these bumps have been filled with melting water and have transformed into small lakes. The alarming rate at which the ground is thawing is a cause for major concern. The permafrost has frozen grass and shrubs and is a reservoir of greenhouse gases. When the layer thaws, these gases are directly emitted into the atmosphere.

The Siberian city of Yakutsk has been standing on a permafrost, the depletion of which will not only be a hazard for the city but also for Siberian climate and weather.

Siberia, and most parts of Russia, has witnessed a huge rise in temperatures, heat waves and an early summer with temperatures reaching almost 35 degrees.

A large part of it is due to global warming, oil spills, factory leakages as well as increase in eco-tourism. Yes, even friendlier modes of tourism and travel too play a pivotal role in increasing the temperature.

The COVID-19 pandemic too has had its share in this. With lack of proper maintenance, devastating Siberian wildfires in May proved to be deadly due to reduced workforce, and gave out large volumes of greenhouse gases.

Though eco-tourism is beneficial in creating awareness about indiginous culture, and in creating employment among locals, it also leads to modernisation and artificial (often damaging) development of a place. Nature-based adventures, trails and extreme offbeat destinations are often held accountable for destruction of untramelled areas.

Experts says that there must be conscious efforts in de-escalating these ventures. Such tourism must be curtailed, and introduced with buffers like controlling daily visitor numbers, maintaining a tab over timings, and consulting environmental organisations about the best measures to protect the vulnerable areas. Sometimes that may mean not allowing any tourists at all.

September 21, 2020 Posted by Christina Macpherson | ARCTIC, climate change, Russia | Leave a comment

Why NuScam and other ”small” nuclear proposals just don’t make any sense

New nuclear projects, like this NuScale proposal, make no sense, Deseret,  By Robert Davies, Contributor  Sep 18, 2020, The debate over nuclear power has ramped up recently in Utah, with a number of the state’s municipal power agencies wrestling with continued participation in an experimental nuclear project in Idaho, the Utah Associated Municipal Power Systems/NuScale project.

Much has already been written about the project itself. Though proponents tout benefits of cost and reliability, two municipalities so far, Logan and Lehi, have recently opted out of further participation, citing mainly financial concerns over an experimental design with delays and cost overruns mounting rapidly. Still, this extremely expensive energy might be worth it ― if the environmental benefits, particularly for climate change, were significant.

Climate change is regarded within the full scientific community as a bona fide civilizational emergency ― that is, a situation requiring immediate, meaningful response to avoid catastrophic outcomes. For the climate emergency, meaningful response means cutting global carbon emissions at least in half in the next decade, and eliminating them entirely in the next two to three decades.

Electricity generation, as roughly a third of the current carbon emissions, is a large piece of the equation ― and it is on this point that nuclear power has been worth considering. Indeed, the project’s developers, having christened the endeavor the “Carbon Free Power Project,” are emphasizing the climate angle. And if the question were about building new nuclear generation versus new fossil (coal or natural gas) generation, they would have a point; the clear winner with respect to climate would be nuclear.

But this isn’t the question. In rapidly decarbonizing the electrical grid, the name of the game is replacing existing high-carbon (coal and gas) with new low-carbon, as quickly as possible.

……..proposed new nuclear makes no sense ― because it isn’t competing with fossils. Instead, new nuclear is competing with low-carbon renewables, chiefly solar and wind. And it simply can’t compete.

Investing in new nuclear projects to combat climate change is akin to the crew of the Titanic devoting time to building a whole new ocean liner instead of putting all their effort into loading the lifeboats; it steals time and resources from a much better alternative. Any money spent on new nuclear could buy us four to six times more wind and solar energy, available in months instead of a decade. And, remember, the next 10 years are critical.

Faced with this reality, UAMPS/NuScale proponents have said they want a mostly renewable grid, but supplemented by just a bit of nuclear for “baseload” ― and that this is necessary.

The refrain of 20th century-era power managers is that renewables like wind and solar aren’t reliable (“The wind doesn’t always blow, the sun doesn’t always shine … ”) and so constantly humming “baseload” is necessary for reliability. It sounds reasonable, but like most bumper-sticker wisdom, doesn’t hold up. In fact, it is objectively, demonstrably wrong.

The technologies of energy storage (utility-scale battery systems, for example) and demand management (when the energy is used) have transformed the landscape. Traditional “baseload” is no longer a necessary grid attribute. Anyone who says it is simply isn’t keeping up.

In Australia, for example, a 100-megawatt utility-scale battery system (about 1.5 times bigger than one of NuScale’s nuclear modules) is already proving more reliable and 90% cheaper than the “baseload” natural gas system it’s replacing. ………

new nuclear makes no sense whatsoever ― financially, or far more importantly, for addressing climate change.

The UAMPS/NuScale project is a poor choice for the planet, for our nation and for Utah’s independent municipal power companies. A bright future is possible if we’re smart and focused; the nuclear power trap is a distraction we can’t afford.

Robert Davies is an associate professor of professional practice in Utah State University’s department of physics. His work focuses on global change, human sustainability and critical science communication.https://www.deseret.com/opinion/2020/9/18/21400144/guest-opinion-nuscale-uamps-nuclear-project-power-utah-idaho-makes-no-sense

September 19, 2020 Posted by Christina Macpherson | 2 WORLD, business and costs, climate change | Leave a comment

Grief in Western America, as inequities, wildfires, and climate change collide

Climate Grief Is Burning Across the American West
Climate change is making wildfires bigger, fiercer, and deadlier, fueling a new kind of despair on the West Coast—and beyond.   Wired  16 Sept 20,
GRIEF HAS SETTLED over the western US, along with the thick haze of smoke pouring from dozens of massive wildfires up and down California, Oregon, Colorado, and Washington. It’s grief over the thousands of structures and at least 33 lives lost so far; grief over another villain conspiring with Covid-19 to lock people indoors; grief that the orange-hued dystopia of Blade Runner is now a reality in smoky San Francisco; grief over losing any sense of normalcy, or indeed a clear future.Enveloping all of those emotions—packaging them into an overwhelming feeling of doom—is climate grief, as psychologists call it, the dread that humans have thoroughly corrupted the planet, and that the planet is now exacting its revenge. Wildfires were around before human-made climate change, but by pulling a variety of strings, it’s made them bigger, fiercer, and ultimately deadlier, creating what fire historian Steve Pyne has dubbed the Pyrocene, an Age of Flames.

By burning fossil fuels, we’ve primed the landscape to burn explosively, and by pushing human communities deeper and deeper into what was once wilderness, we’re provided plenty of opportunities for ignition—and plenty of opportunities for grief as these forces catastrophically combine.

“So much is out of our control,” says Adrienne Heinz, a research psychologist at the Stanford University School of Medicine, who studies the effects of disasters like wildfires and the Covid-19 pandemic. “We lose our sense of personal agency over how we will live—the decisions are made for us.”

It shifts from grief over what’s happening with our climate—can we feel safe in our own communities?—to despair, the differentiator being that you don’t feel like tomorrow is going to be any better than today,” Heinz adds. “That’s where it gets really dark.”

For the people of Northern California, an exhausting parade of massive wildfires have marched across the landscape over the past several autumns, with many people having to evacuate several years in a row. Last October, the Kincade Fire burned 120 square miles. The November before, the Camp Fire destroyed the town of Paradise and killed 86 people. And in October 2017, the Tubbs Fire obliterated 5,600 structures and killed 22.

“The catchphrase—kind of with a bitterness around here—is, ‘This is the new normal,’” says Barbara Young, a licensed marriage and family therapist in Healdsburg, north of San Francisco, who had to evacuate last month. “And so with that, I think it’s implied that this isn’t going away—our climate is changing. These aren’t flukes, this is the trend. And I think everyone is very clear that this is not a one-off. This is every year now.”  ……………

Thus inequities, wildfires, and climate change collide. Each massive problem on its own is difficult for the human mind to parse, much less all three together. “I am doing a lot of work with people on really increasing psychological self-care, spiritual self-care, physical self-care, and to help that fatigue,” says Young, the therapist in Healdsburg. “And I do think that is connected with climate grief. Finally, maybe we are forced to see how interconnected everything is.”  https://www.wired.com/story/climate-grief-is-burning-across-the-american-west/

September 17, 2020 Posted by Christina Macpherson | climate change, psychology - mental health, USA | 1 Comment

In tropical areas, increasing heat and humidity will make life almost unbearable

Climate explained: will the tropics eventually become uninhabitable?  https://theconversation.com/climate-explained-will-the-tropics-eventually-become-uninhabitable-145174  James Shulmeister– 16 Sept 20, Professor, School of Earth and Environmental Sciences, University of Canterbury   What is the impact of temperature increases in the tropics? How likely is it that regions along the Equator will be uninhabitable due to high wet bulb temperatures such as 35℃ and more in places like Singapore? Do we have models that suggest how likely this is and at what time frames?More than 3.3 billion people live in the tropics, representing about 40% of the world’s population. Despite some areas of affluence, such as Singapore, the tropics are also home to about 85% of the world’s poorest people and are therefore particularly susceptible to the impacts of climate change.

The tropics are expected to experience rising temperatures and changes to rainfall, and the question is whether this could make this region uninhabitable. How would this happen?

Heat stress

Humans regulate their body temperature in warm conditions through sweating. The sweat evaporates and cools the skin. But if conditions are humid, sweating and evaporation are much less effective.

Humans can survive and function in quite high temperatures if humidity is low, but as humidity increases our ability to function decreases rapidly. This effect is measured by a heat stress index which shows the apparent temperature you feel under different relative humidity conditions.

From a human health point of view, the wet bulb temperature is critical. This is the temperature a thermometer covered in a wet cloth would measure, and it reflects the maximum amount of cooling that can be achieved by evaporation.

High wet bulb temperatures are more problematic to human health than high absolute temperatures. Wet bulb temperatures above 35℃ are life-threatening because they cause hyperthermia, which means the body cannot cool down and the internal body temperature exceeds 40℃.

Climate modelling predictions used by the Intergovernmental Panel on Climate Change (IPCC) for the period from 2080-2100 suggest warming in the tropics of about 1.6℃ under mid-range emissions scenarios and up to 3.3℃ under high emissions scenarios, with error margins of about 0.5℃ on both predictions.

Different parts of the world respond in different ways to warming from greenhouse gas emissions. The projected warming in the tropics represents about 40% of the expected temperature rise in the Arctic.

High-latitude regions – far north or south of the Equator – warm more rapidly than the global average because excess heat in the tropics creates a temperature and pressure gradient. This drives heat up to higher elevations and higher latitudes through an atmospheric circulation called the Hadley cell.

The stronger the gradient, the more heat is exported.

Hot in the city

There is one additional factor: urbanisation. Singapore is a good place to look at actual climate change in the tropics.

Records from Singapore indicate temperatures have increased by 1.1℃ over 42 years to 2014. This is nearly twice the average global rate of warming over recent decades and is opposite to expectations.

The difference appears to be due to a heat island effect caused by the city itself. This is important because changes in land use amplify background global climate change and put tropical cities at greater risk of extreme heat. As populations are concentrated in cities, this increases the risk to human health.

The mean average temperature for Singapore is about 27℃, whereas Jakarta in Indonesia is slightly warmer. At the scale of predicted mean annual temperature change, neither of these cities would become uninhabitable. But even a small temperature increase would make life more challenging.

This is made worse in at least some parts of the tropics, because total rainfall is increasing, suggesting a long-term rise in humidity. For example, average rainfall in Singapore increased by more than 500mm from 2,192mm in 1980 to 2,727mm in 2014.

Deadly heat

People working outdoors are at higher risk, as are vulnerable populations, including the elderly. Under the IPCC’s high-emission trajectory, heat-related deaths in Jakarta in August are expected to rise from about 1,800 in 2010 to nearly 27,000 in 2050.

Even allowing for a significant increase in elderly people as the Indonesian population ages, this means about 15,000 excess deaths in this month. Estimates under high-emission predictions for the tropics and mid-latitudes suggest about a 40% decline in the ability to undertake manual work during the warmest month by 2050.

These impacts will be stronger in the seasonally wet tropics (such as the Northern Territory of Australia), where more extreme warming is expected than in the equatorial zone.

Predictions for Darwin, in northern Australia, suggest an increase in days with temperatures above 35℃ from 11 days a year in 2015 to an average of 43 days under the mid-range emission scenario (IPCC’s RCP4.5 scenario) by 2030 and an average of 111 (range 54-211) days by 2090. Under the higher emission scenario (IPCC’s RCP8.5), an average of 265 days above 35℃ could be reached by 2090.

In summary, while absolute temperatures are expected to rise more slowly in the tropics when compared with higher latitudes and polar regions, the combination of heat and rising humidity will make life challenging, but not impossible.

September 17, 2020 Posted by Christina Macpherson | 2 WORLD, climate change, health | 1 Comment

Arctic sea ice becomes a sea of slush

Sea of Slush: Arctic sea ice lows mark a new polar climate regime Reporting by Natalie Thomas in the Arctic Ocean and Cassandra Garrison in Buenos Aires; Editing by Katy Daigle and Lisa Shumaker By Natalie Thomas, Cassandra Garrison

ARCTIC OCEAN (Reuters) 14 Sept 20, – At the edge of the ice blanketing part of the Arctic Ocean, the ice on Monday looked sickly. Where thick sheets of ice once sat atop the water, now a layer of soft, spongey slush slid and bobbed atop the waves.

From the deck of a research ship under a bright, clear sky, “ice pilot” Paul Ruzycki mused over how quickly the region was changing since he began helping ships spot and navigate between icebergs in 1996.

“Not so long ago, I heard that we had 100 years before the Arctic would be ice free in the summer,” he said. “Then I heard 75 years, 25 years, and just recently I heard 15 years. It’s accelerating.”

As if on cue, scientists on Monday said the vast and ancient ice sheet sitting atop Greenland had sloughed off a 113 square kilometer chunk of ice last month. The section of the Spalte Glacier at the northwest corner of the Arctic island had been cracking for several years before finally breaking free on Aug. 27, clearing the way inland ice loss to the sea, the Geological Survey of Denmark and Greenland bit.ly/2Rq5Mw2 reported.

With climate change driving up Arctic temperatures, the once-solid sea ice cover has been shrinking to stark, new lows in recent years. This year’s minimum, still a few days from being declared, is expected to be the second-lowest expanse in four decades of record-keeping. The record low of 3.41 million square kilometers – reached in September 2012 after a late-season cyclonic storm broke up the remaining ice – is not much below what we see today.

“We haven’t gone back at all to anything from 30 to 40 years ago,” said climatologist Julienne Stroeve at the National Snow and Ice Data Center in Boulder, Colorado. And as climate change continues, scientists say the sea ice is unlikely to recover to past levels.

In fact, the long-frozen region is already shifting to an entirely new climate regime, marked by the escalating trends in ice melt, temperature rise and rainfall days, according to new research published Monday in the journal Nature Climate Change.

Those findings, climate scientist Laura Landrum said, were “unnerving.”

All three variables – sea ice, temperatures and rainfall – are now being measured well beyond the range of past observations. That makes the future of the Arctic more of a mystery……… https://www.reuters.com/article/us-climate-change-arctic-sea-ice/sea-of-slush-arctic-sea-ice-lows-mark-a-new-polar-climate-regime-idUSKBN2652UL

September 15, 2020 Posted by Christina Macpherson | ARCTIC, climate change, oceans | Leave a comment

« Previous Entries     Next Entries »

1 This Month

26 April – Chernobyl: Inside the Meltdown airs on National Geographic on Sunday 26th April from 4pm

29 April –  Nuclear Expert Webinar #1 – Radiation Impacts on Families with Mary Olson and Cindy Folkers

  •  12:15 PM MT – 1:45 PM MT
  • Location: Virtual – REGISTER TODAY

4 May -West Suburban Peace Coalition to discuss Iran war at May Educational Forum

Monday, May 4, 7:00 – 8:00 PM Central Standard Time

Title: : How Trump’s Narrative Tries to Shape the Reality of the War on Iran.

Contact Walt Zlotow, zlotow@hotmail.com   630 442 3045 for further information 

14 May – online event From Bombs to Data Centres: the Face of Nuclear Colonialism

Screenshot

Pine Ridge Uranium is the real threat, not Tehran- Tell Burgum: Stop the Extraction.

Chernobyl: The Lost Tapes – A good documentary on Chernobyl on SBS available On Demand for the next 3 weeks– https://www.sbs.com.au/ondemand/tv-program/chernobyl-the-lost-tapes/2352741955560

​To see nuclear-related stories in greater depth and intensity – go to https://nuclearinformation.wordpress.com

  • Categories

    • 1
      • Arclight's Vision
    • 1 NUCLEAR ISSUES
      • business and costs
        • employment
        • marketing
      • climate change
      • culture and arts
      • ENERGY
        • renewable
          • decentralised
          • energy storage
      • environment
        • oceans
        • water
      • health
        • children
        • psychology – mental health
        • radiation
        • social effects
        • women
      • history
      • indigenous issues
      • Legal
        • deaths by radiation
        • legal
      • marketing of nuclear
      • media
        • investigative journalism
        • Wikileaks
      • opposition to nuclear
      • PERSONAL STORIES
      • politics
        • psychology and culture
          • Trump – personality
        • public opinion
        • USA election 2024
        • USA elections 2016
      • politics international
      • Religion and ethics
      • safety
        • incidents
      • secrets,lies and civil liberties
        • civil liberties
      • spinbuster
        • Education
      • technology
        • reprocessing
        • Small Modular Nuclear Reactors
        • space travel
      • Uranium
      • wastes
        • – plutonium
        • decommission reactor
      • weapons and war
        • Atrocities
        • depleted uranium
      • Women
    • 2 WORLD
      • ANTARCTICA
      • ARCTIC
      • ASIA
        • Burma
        • China
        • India
        • Indonesia
        • Japan
          • – Fukushima 2011
          • Fukushima 2012
          • Fukushima 2013
          • Fukushima 2014
          • Fukushima 2015
          • Fukushima 2016
          • Fukushima continuing
        • Malaysia
        • Mongolia
        • North Korea
        • Pakistan
        • South Korea
        • Taiwan
        • Turkey
        • Vietnam
      • EUROPE
        • Belarus
        • Bulgaria
        • Denmark
        • Finland
        • France
        • Germany
        • Greece
        • Ireland
        • Italy
        • Kazakhstan
        • Kyrgyzstan
        • Russia
        • Spain
        • Sweden
        • Switzerland
        • UK
        • Ukraine
      • MIDDLE EAST
        • Afghanistan
        • Egypt
        • Gaza
        • Iran
        • Iraq
        • Israel
        • Jordan
        • Libya
        • Saudi Arabia
        • Syria
        • Turkey
        • United Arab Emirates
      • NORTH AMERICA
        • Canada
        • USA
          • election USA 2020
      • OCEANIA
        • New Zealand
        • Philippines
      • SOUTH AMERICA
        • Brazil
    • ACTION
    • AFRICA
      • Kenya
      • Malawi
      • Mali
      • Namibia
      • Niger
      • Nigeria
      • Somalia
      • South Africa
    • Atrocities
    • AUSTRALIA
    • Christina's notes
    • Christina's themes
    • culture and arts
    • Events
    • Fuk 2022
    • Fuk 2023
    • Fukushima 2017
    • Fukushima 2018
    • fukushima 2019
    • Fukushima 2020
    • Fukushima 2021
    • general
    • global warming
    • Humour (God we need it)
    • Nuclear
    • RARE EARTHS
      • thorium
    • Reference
      • Reference archives
    • resources – print
    • Resources -audiovicual
    • Weekly Newsletter
    • World
    • World Nuclear
    • YouTube
  • Pages

    • 1 This Month
    • ACTION !
    • Disclaimer
    • Links
    • PAGES on NUCLEAR ISSUES
      • audio-visual news
      • Anti Nuclear, Clean Energy Movement
        • Anti Nuclear movement – a success story
          • – 2013 – the struggle for a nuclear-free, liveable world
          • – 2013: the battle to expose nuclear lies about ionising radiation
            • Speakers at Fukushima Symposium March 2013
            • Symposium 2013 Ian Fairlie
      • Civil Liberties
        • – Civil liberties – China and USA
      • Climate change
      • Climate Change
      • Economics
        • – Employment
        • – Marketing nuclear power
        • – Marketing Nuclear Power Internationally
        • nuclear ‘renaissance’?
        • Nuclear energy – the sick man of the corporate world
      • Energy
        • – Solar energy
      • Environment
        • – Nuclear Power and the Tragedy of the Commons
        • – Water
      • Health
        • Birth Defects in the Chernobyl Radiation Affected Region.
      • History
        • Nuclear History – the forgotten disasters
      • Indigenous issues
      • Ionising radiation
        • – Ionising radiation – medical
        • Fukushima FACT SHEET
      • Media
        • Nuclear Power and Media 2012
      • Nuclear Power and the Consumer Society – theme for December 2012
      • Peace and nuclear disarmament
        • Peace on a Nuclear Free Earth
      • Politics
        • – Politics USA
      • Public opinion
      • Religion and ethics
        • -Ethics of nuclear power
      • Resources – print
      • Safety
      • Secrets and lies
        • – NUCLEAR LIES – theme for January 2012
        • – Nuclear Secrets and Lies
      • Spinbuster
        • 2013 nuclear spin – all about FEAR -theme for June
        • Spinbuster 1
      • Technology
        • TECHNOLOGY Challenges
      • Wastes
        • NUCLEAR WASTES – theme for October 2012
        • – Plutonium
      • Weapons and war
      • Women
  • Archives

    • April 2026 (327)
    • March 2026 (251)
    • February 2026 (268)
    • January 2026 (308)
    • December 2025 (358)
    • November 2025 (359)
    • October 2025 (376)
    • September 2025 (257)
    • August 2025 (319)
    • July 2025 (230)
    • June 2025 (348)
    • May 2025 (261)
  • Categories

    • 1
      • Arclight's Vision
    • 1 NUCLEAR ISSUES
      • business and costs
        • employment
        • marketing
      • climate change
      • culture and arts
      • ENERGY
        • renewable
          • decentralised
          • energy storage
      • environment
        • oceans
        • water
      • health
        • children
        • psychology – mental health
        • radiation
        • social effects
        • women
      • history
      • indigenous issues
      • Legal
        • deaths by radiation
        • legal
      • marketing of nuclear
      • media
        • investigative journalism
        • Wikileaks
      • opposition to nuclear
      • PERSONAL STORIES
      • politics
        • psychology and culture
          • Trump – personality
        • public opinion
        • USA election 2024
        • USA elections 2016
      • politics international
      • Religion and ethics
      • safety
        • incidents
      • secrets,lies and civil liberties
        • civil liberties
      • spinbuster
        • Education
      • technology
        • reprocessing
        • Small Modular Nuclear Reactors
        • space travel
      • Uranium
      • wastes
        • – plutonium
        • decommission reactor
      • weapons and war
        • Atrocities
        • depleted uranium
      • Women
    • 2 WORLD
      • ANTARCTICA
      • ARCTIC
      • ASIA
        • Burma
        • China
        • India
        • Indonesia
        • Japan
          • – Fukushima 2011
          • Fukushima 2012
          • Fukushima 2013
          • Fukushima 2014
          • Fukushima 2015
          • Fukushima 2016
          • Fukushima continuing
        • Malaysia
        • Mongolia
        • North Korea
        • Pakistan
        • South Korea
        • Taiwan
        • Turkey
        • Vietnam
      • EUROPE
        • Belarus
        • Bulgaria
        • Denmark
        • Finland
        • France
        • Germany
        • Greece
        • Ireland
        • Italy
        • Kazakhstan
        • Kyrgyzstan
        • Russia
        • Spain
        • Sweden
        • Switzerland
        • UK
        • Ukraine
      • MIDDLE EAST
        • Afghanistan
        • Egypt
        • Gaza
        • Iran
        • Iraq
        • Israel
        • Jordan
        • Libya
        • Saudi Arabia
        • Syria
        • Turkey
        • United Arab Emirates
      • NORTH AMERICA
        • Canada
        • USA
          • election USA 2020
      • OCEANIA
        • New Zealand
        • Philippines
      • SOUTH AMERICA
        • Brazil
    • ACTION
    • AFRICA
      • Kenya
      • Malawi
      • Mali
      • Namibia
      • Niger
      • Nigeria
      • Somalia
      • South Africa
    • Atrocities
    • AUSTRALIA
    • Christina's notes
    • Christina's themes
    • culture and arts
    • Events
    • Fuk 2022
    • Fuk 2023
    • Fukushima 2017
    • Fukushima 2018
    • fukushima 2019
    • Fukushima 2020
    • Fukushima 2021
    • general
    • global warming
    • Humour (God we need it)
    • Nuclear
    • RARE EARTHS
      • thorium
    • Reference
      • Reference archives
    • resources – print
    • Resources -audiovicual
    • Weekly Newsletter
    • World
    • World Nuclear
    • YouTube
  • RSS

    Entries RSS
    Comments RSS

Site info

nuclear-news
Blog at WordPress.com.
Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use.
To find out more, including how to control cookies, see here: Cookie Policy
  • Subscribe Subscribed
    • nuclear-news
    • Join 2,102 other subscribers
    • Already have a WordPress.com account? Log in now.
    • nuclear-news
    • Subscribe Subscribed
    • Sign up
    • Log in
    • Report this content
    • View site in Reader
    • Manage subscriptions
    • Collapse this bar
 

Loading Comments...