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Global Optimism – The Future We Choose

Observer 15th Feb 2020, Christiana Figueres is a founder of the Global Optimism group and was head of the UN climate change convention when the Paris agreement was achievedin 2015.

Your new book is called The Future We Choose. But isn’t it too
late to stop the climate crisis? We are definitely running late. We have
delayed appallingly for decades. But science tells us we are still in the
nick of time. We can only choose it this decade.

Our parents did not have this choice, because they didn’t have the capital, technologies and understanding. And for our children, it will be too late.

So this is the decade and we are the generation. If we all reduce our emissions,
collectively we give a signal to the market. Obviously, corporations have
their own responsibilities but it’s helpful to have a strong demand from
the public. Once you get governments, corporations and the public moving in
the same direction towards low carbon, it can grow exponentially [such as
with renewable energy and electric cars]. People reducing their emissions
– by flying less, eating less meat and using clean energy, for example
– is important.

https://www.theguardian.com/environment/2020/feb/15/christiana-figueres-climate-emergency-this-is-the-decade-the-future-we-choose

February 17, 2020 Posted by | 2 WORLD, climate change | 1 Comment

Giant iceberg ‘calves’ from Antarctic ice shelf

Shrinking Antarctic ice shelf Pine Island Glacier sheds giant iceberg, ABC News, Digital Story Innovation Team  By Mark Doman 14 Feb 20,  In one of the fastest-changing areas of the Antarctic ice sheet, satellites have captured the formation of a giant, 300-square-kilometre iceberg.

Researchers monitoring satellite imagery of the Pine Island Glacier (PIG), in west Antarctica, first noticed two large rifts forming in the shelf in 2019.

Over the next few months, as the glacier moved out towards the Amundsen Sea, the rifts expanded, eventually leading to the splitting of the iceberg from the glacier on February 9.

Within a day, the iceberg had broken up into smaller pieces.

Only one of the pieces was large enough to be named (B-49) and tracked by the United States National Ice Centre.

It comes just days after a station on the Antarctic Peninsula logged its hottest day on record, registering a temperature of 18.3 degrees Celsius.

The peninsula, which juts out to the north-east of the Pine Island Glacier, is among the fastest-warming regions on the planet. Temperatures there have increased almost 3C over the last 50 years, according to the World Meteorological Organisation.

Last month, scientists also recorded unusually warm water beneath the Thwaites Glacier, a neighbour to Pine Island.

While the calving of icebergs from shelves such as the Pine Island Glacier is a natural process in the life of a giant glacier, the rate at which this glacier and others in the region have been disintegrating is a cause of concern for scientists.

Previously the ice shelf calved once a decade. By the early 2000s, it started calving once every five years. But since 2013, the glacier has calved five times, according to Stef Lhermitte, a remote sensing scientist from the Delft University of Technology in the Netherlands……. https://www.abc.net.au/news/2020-02-13/antarctic-ice-shelf-pine-island-glacier-sheds-giant-iceberg/11957770

February 15, 2020 Posted by | ANTARCTICA, climate change, oceans | Leave a comment

Sellafield and Drigg, Today and tomorrow’s Flood Warning.

Radiation Free Lakeland 10th Feb 2020, Sellafield and Drigg, Today and tomorrow’s Flood Warning. This is why there
should be no new nuclear wastes arriving at Sellafield, no new so called
Small Modular Reactors on this floodplain ….and no new coal mine deep
under the Irish Sea. Cumbria (and the fallout is planetary) is ALREADY
under intolerable risks. Today’s flood warnings …fingers crossed.

https://mariannewildart.wordpress.com/2020/02/10/sellafield-and-drigg-today-and-tomorrows-flood-warning/

February 13, 2020 Posted by | climate change, UK | Leave a comment

Coronovirus, bats, and the Climate Change connection

The Wuhan Coronavirus, Climate Change, and Future Epidemics…...TIME, 10 Feb 2020, 

“………The strain of coronavirus that’s spreading now is different than Candida for many reasons, but its likely animal vector—bats—provides an interesting example of how temperatures relate to the spread of infectious disease. Like humans, bats are mammals that maintain a warm body temperature that protect them from disease. But while our body temperature rests around 98.6°F and spikes a few degrees when we’re sick, bats’ body temperatures can regularly jump to as high as 105°F.
That means they can carry a whole slew of pathogens without suffering from them. In the near future, as global temperatures inch up, bats will continue to be protected by their body heat, while the pathogens they carry are better able to harm us.
For decades, scientists have recognized that climate change would lead to a range of public health consequences. A 1992 report from the National Academy of Sciences, for example, cited a number of ways climate change could lead to the spread of infectious disease and described the lack of resources devoted to studying the impact of climate change on disease as “disturbing.” Four years later, a widely-cited paper in the Journal of the American Medical Association warned that climate change could increase the spread of everything from malnutrition to malaria, and called for concerted study between doctors, climate scientists and social scientists. That same year the World Health Organization published a 300-page tome on the topic, looking at a slew of ties between climate and health, but at the same time noting that the links are “complex and multifactorial.”https://time.com/5779156/wuhan-coronavirus-climate-change/

February 11, 2020 Posted by | China, climate change | 1 Comment

Some climate models now predict unexpected , unprecedented spike in global temperatures

A few climate models are now predicting an unprecedented and alarming spike in temperatures — perhaps as much as 5 degrees Celsius, Business Insider, CONNOR PERRETT FEB 9, 2020  

  • A handful of climate projections are predicting much higher rise in global temperatures than scientists have seen in the models before.
  • While there’s concern over the number, some scientists hope the latest projections are outliers.
  • A 2-degree rise in temperature could lead sea level to jump, coral reefs to die, and water to become dangerously scarce in some parts of the world. Some models right now predict a 5-degree rise.
Several recent climate models have suggested the Earth’s climate could warm to a far higher temperature than scientists previously predicted, according to a report from Bloomberg.

The startling anomaly first appeared in models from the National Centre for Atmospheric Research (NCAR), which suggested that if Earth’s atmospheric carbon-dioxide concentration doubles (as it’s expected to do by the end of the century), the planet could wind up 5.3 degrees hotter. That’s 33% higher than the group’s previous estimate.

About a fifth of new climate-model results published in the past year have indicated similarly stark global temperature spikes, according to Bloomberg. The UK-based Met Office Hadley Centre predicted a 5.5 degrees of warming, the US Department of Energy calculated a 5.3°-degree jump, French scientists estimated a 4.9-degree increase, and a model from Canadian scientists predicted the largest rise: 5.6 degrees

Scientists hope the models are an “overshot,” Bloomberg reported. It will take scientists a significant amount time – at least months – to figure out how to interpret the results.

The climate models estimate “climate sensitivity,” which tells scientists how much warmer the planet will get as a result of rising CO₂ concentrations. For four decades, the expected temperature rise if CO2 levels double has been about 3 degrees.

These models have a proven track record of accurately forecasting climate change. A recent study from the American Geophysical Union found that climate projections over the past five decades have largely been accurate – actual climate observations aligned with the models’ predictions.

Still, there’s a hope among climate scientists that the new projections are outliers. About a dozen other models are still due to be released, Bloomberg reported, and they could help paint a clearer picture……. https://www.businessinsider.com.au/global-warming-climate-models-higher-than-usual-confusing-scientists-2020-2?r=US&IR=T

February 11, 2020 Posted by | 2 WORLD, climate change | Leave a comment

Delhi’s disaster – disappearing water supplies

February 11, 2020 Posted by | climate change, India | Leave a comment

Climate emergency plans must have a ‘no new nuclear’ clause

The nuclear and fossil fuel industry are mutually intertwined.

“There is no such thing as a zero or near-zero-emission nuclear power plant”

the mean value is about 66 grams of carbon dioxide for every kWh produced by nuclear power. This compares to about 9g for wind, 32g for solar and 443 for gas.

“This puts nuclear as the third highest carbon emitter after coal-fired plants and natural gas….

February 10, 2020 Posted by | climate change, UK | Leave a comment

Arctic ice melt is changing ocean currents 

February 10, 2020 Posted by | ARCTIC, climate change, Reference | Leave a comment

Permafrost thawing -“fast and dramatic, affecting landscapes in unprecedented ways

 

February 6, 2020 Posted by | ARCTIC, climate change, Reference | Leave a comment

Sea-level rise – an Unmanaged climate risks to spent fuel from U.S. nuclear power plants.

Unmanaged climate risks to spent fuel from U.S. nuclear power plants: The case of sea-level rise  https://www.sciencedirect.com/science/article/abs/pii/S0301421519306937?fbclid=IwAR3G1uXQ-mz1KU1_ENXztdqIdICVZPsgO6Rw-qvQ1jHHPiGPUuumd7OHcjw

Author links open overlay panelLisa MartineJenkinsRobertAlvarezSarah MarieJordaan

Highlights

•Climate change will result in new risks to nuclear power operations.
•Spent fuel sites will be subject to risks from sea-level rise.
•A long-term spent fuel management plan is needed to mitigate risks.
•Short-term solutions to mitigate risks are recommended.
Abstract

Climate change and its accompanying sea-level rise is set to create risks to the United States’ stockpile of spent nuclear fuel, which results largely from nuclear power. Coastal spent fuel management facilities are vulnerable to unanticipated environmental events, as evidenced by the 2011 tsunami-related flooding at the Fukushima plant in Japan.

We examine how policy-makers can manage climate risks posed to the coastal storage of radioactive materials, and identify the coastal spent fuel storage sites that will be most vulnerable to sea-level rise.

A geospatial analysis of coastal sites shows that with six feet of sea-level rise, seven spent fuel sites will be juxtaposed by seawater. Of those, three will be near or completely surrounded by water, and should be considered a priority for mitigation: Humboldt Bay (California), Turkey Point (Florida), and Crystal River (Florida).

To ensure policy-makers manage such climate risks, a risk management approach is proposed. Further, we recommend that policy-makers 1) transfer overdue spent fuel from cooling pools to dry casks, particularly where located in high risk sites; 2) develop a long-term and comprehensive storage plan that is less vulnerable to climate change; and 3) encourage international nuclear treaties and standards to take climate change into account.

February 6, 2020 Posted by | climate change, USA | Leave a comment

Weather reporters joining the battle against climate change

Weathercasters Are Talking About Climate Change—and How We Can Solve It   https://www.motherjones.com/environment/2020/02/weathercasters-are-talking-about-climate-change-and-how-we-can-solve-it/

In recent years there’s been a seismic shift on climate change within the weather reporting community. MADDIE STONE THIS piece was originally published in Grist and appears here as part of our Climate Desk PARTNERSHIP.

For many years, as the science of human-caused climate change grew ever clearer, TV meteorologists avoided discussing the topic on air. Today, many weathercasters bring up climate change regularly. By embracing the science and presenting it in a simple, locally-relevant manner, TV meteorologists have managed to become some of the most effective and trustworthy climate change educators in the country.

Now some meteorologists are taking the conversation a step further and talking not just about the science of climate change, but how we can solve it.

At the 100th annual meeting of the American Meteorological Society (AMS) in Boston earlier this month, a panel of broadcast meteorologists, climate communicators, and policy experts assembled to discuss how solutions to the climate crisis can be woven into TV weather reporting. While wading into politics on the air can carry career risks for many meteorologists, weathercasters are also uniquely positioned to educate the public about climate solutions in a nonpartisan way, whether that’s by delivering locally tailored forecasts of renewable power production or discussing climate resilience strategies in the wake of a major storm.

“Broadcasters have an unusually good platform from which to engage,” said Ed Maibach, the director of the Center for Climate Change Communication at George Mason University, during the panel. “You not only have the access but consistency of relationships with an audience.”

In recent years there’s been a seismic shift on climate change within the weather reporting community. In a 2011 survey of AMS members and the National Weather Association, less than 20 percent felt sure humans are the primary driver of global warming, a statistic that Maibach attributes, in part, to an “aggressive misinformation campaign by the Heartland Institute,” a climate change–denying think tank. But by 2017 that figure had jumped to 80 percent. That’s thanks largely to the efforts of the educators who organized Climate Matters, a climate reporting resource developed by the nonprofit Climate Central, the AMS, and various governmental and academic partners

February 3, 2020 Posted by | climate change, USA | Leave a comment

Why Arctic glaciers are melting away at an accelerating rate

How the ocean is gnawing away at glaciers, https://www.sciencedaily.com/releases/2020/02/200203114350.htm

Date:
February 3, 2020
Source:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research
Summary:
The Greenland Ice Sheet is melting faster today than it did only a few years ago. The reason: it’s not just melting on the surface — but underwater, too. AWI researchers have now found an explanation for the intensive melting on the ice’s underside, and published their findings in the journal Nature Geoscience.

The glaciers are melting rapidly: Greenland’s ice is now melting seven times faster than in the 1990s — an alarming discovery, since climate change will likely intensify this melting in the future, causing the sea level to rise more rapidly.

Accordingly, researchers are now working to better understand the underlying mechanisms of this melting. Ice melts on the surface because it is exposed to the sun and rising temperatures. But it has now also begun melting from below — including in northeast Greenland, which is home to several ‘ice tongues’. Each tongue is a strip of ice that has slid down into the ocean and floats on the water — without breaking off from the land ice. The longest ice tongue, part of the ’79° North Glacier’, is an enormous 80 km long. Over the past 20 years, it has experienced a dramatic loss of mass and thickness, because it’s been melting not just on the surface, but also and especially from below.

Too much heat from the ocean

A team led by oceanographer Dr Janin Schaffer from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) in Bremerhaven has now identified the source of this intense underwater melting. The conclusions of their study, which the experts have just released in the journal Nature Geoscience, are particularly unsettling because the melting phenomenon they discovered isn’t unique to the 79° North Glacier, which means it could produce similar effects elsewhere. For the purposes of the study, the researchers conducted the first extensive ship-based survey of the ocean floor near the glacier, which revealed the presence of a two-kilometre-wide trough, from the bottom of which comparatively warm water from the Atlantic is channelled directly toward the glacier. But that’s not all: in the course of a detailed analysis of the trough, Janin Schaffer spotted a bathymetric sill, a barrier that the water flowing over the seafloor has to overcome. Once over the hump, the water rushes down the back of the sill — and under the ice tongue. Thanks to this acceleration of the warm water mass, large amounts of heat from the ocean flow past the tongue every second, melting it from beneath. To make matters worse, the layer of warm water that flows toward the glacier has grown larger: measured from the seafloor, it now extends 15 metres higher than it did just a few years ago. “The reason for the intensified melting is now clear,” Schaffer says. “Because the warm water current is larger, substantially more warmth now makes its way under the ice tongue, second for second.”

Other regions are also affected

In order to determine whether the phenomenon only manifests at the 79° North Glacier or also at other sites, the team investigated a neighbouring region on Greenland’s eastern coast, where another glacier, the Zachariæ Isstrøm, juts out into the sea, and where a large ice tongue had recently broken off from the mainland. Working from the surface of an ice floe, the experts measured water temperatures near the ocean floor. According to Schaffer: “The readings indicate that here, too, a bathymetric sill near the seafloor accelerates warm water toward the glacier. Apparently, the intensive melting on the underside of the ice at several sites throughout Greenland is largely produced by the form of the seafloor.” These findings will ultimately help her more accurately gauge the total amount of meltwater that the Greenland Ice Sheet loses every year.


Story Source:

Materials provided by Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research. Note: Content may be edited for style and length.

February 3, 2020 Posted by | ARCTIC, climate change, oceans | Leave a comment

Europe to be the first carbon neutral continent, and WITH NUCLEAR POWER EXCLUDED

Renew Extra 1st Feb 2020, Dave Elliott: With Climate Change at the top of the agenda, the EU aims to be the first carbon neutral continent, working towards net zero greenhouse gas emissions by 2050, with a new climate law being enacted soon. That’s taken some fighting for and fiddling, given the opposition from heavy coal users like Poland, but there’s a proposed Just Transition mechanism to help countries like that move to carbon neutrality, with nuclear excluded from support for this.

So renewables should boom even more. Renewables have
certainly been doing well. Germany will soon get around half of its power
from renewables, Portugal is already at over 54%, Denmark near 60%, while
Sweden is at 66% and Austria over 70%. By 2030 some of these countries
could be getting near 100% of their electricity from renewables and should
also be beginning to meet significant shares of their heat and transport
needs using renewables. Sweden already gets around 54% of all its energy
from renewables, Norway and Iceland are both at around 70%.

https://renewextraweekly.blogspot.com/2020/02/there-have-been-divergent-views-on.html

February 3, 2020 Posted by | climate change, EUROPE | Leave a comment

Climate strategies to stave off ecological disaster

February 3, 2020 Posted by | 2 WORLD, climate change | Leave a comment

Katherine Hayhoe on A BETTER WAY TO TALK ABOUT THE CLIMATE CRISIS

Don’t start with fear, judgment, condemnation, or guilt. And don’t start with just overwhelming people with facts and figures. Do start by connecting the dots to what is already important to both of us, and then offer positive, beneficial, and practical solutions that we can engage in.

climate change affects the economy, the availability of natural resources, prices, jobs, international competition, and more. Failing to account for climate change in future long-range planning could lose us a competitive edge even in a best-case scenario, and potentially mean the end of a product line or an entire business in the worst case. By connecting climate impacts to what we already care about, we can recognize the importance and urgency of taking action.

February 3, 2020 Posted by | 2 WORLD, climate change | Leave a comment