By Roger Harrabin, BBC environment analyst, 12 February 2019,
Politicians and policymakers have failed to grasp the gravity of the environmental crisis facing the Earth, a report claims.
The think-tank IPPR says human impacts have reached a critical stage and threaten to destabilise society and the global economy.
Scientists warn of a potentially deadly combination of factors.
These include climate change, mass loss of species, topsoil erosion, forest felling and acidifying oceans.
The report from the centre-left Institute for Public Policy Research says these factors are “driving a complex, dynamic process of environmental destabilisation that has reached critical levels.
“This destabilisation is occurring at speeds unprecedented in human history and, in some cases, over billions of years.”
So what is needed?
The IPPR warns that the window of opportunity to avoid catastrophic outcomes is rapidly closing.
The authors urge three shifts in political understanding: on the scale and pace of environmental breakdown; the implications for societies; and the subsequent need for transformative change.
They say since 1950, the number of floods across the world has increased by 15 times, extreme temperature events by 20 times, and wildfires seven-fold.
At least climate change features in policy discussions, they say – but other vitally important impacts barely figure.
What issues are being under-played?
Topsoil is being lost 10 to 40 times faster than it is being replenished by natural processes
Since the mid-20th Century, 30% of the world’s arable land has become unproductive due to erosion
These matters are close to home for British politicians, the authors argue, with the average population sizes of the most threatened species in the UK having decreased by two-thirds since 1970.
Nearly 85% of fertile peat topsoil in East Anglia has been lost since 1850, with the remainder at risk of being lost over next 30–60 years.
The IPPR says many scientists believe we have entered a new era of rapid environmental change.
The report warns: “We define this as the ‘age of environmental breakdown’ to better highlight the severity of the scale, pace and implications of environmental destabilisation resulting from aggregate human activity.”
Will society take the solutions on offer?
Simon Lewis, Professor of Global Change Science at University College London, told BBC News: “IPPR are right to say that environmental change is happening ever-faster and threatens to destabilise society.
“Future problems with food supplies could cause price spikes that drive civil unrest, while increases in levels of migration can strain societies.
“Both together could overload political institutions and global networks of trade.
“This century will be marked by rapid social and environmental change – that is certain. What is less clear is if societies can make wise political choices to avoid disaster in the future.”
Harriet Bulkeley, a geography professor at Durham University, told BBC News that the IPPR paper was a good interpretation of the current evidence, but she said it raised the question of how firm evidence of environmental threats had to be to prompt government action.
“We know lots of good things to do,” she said, “but often the argument is made that we need to have ‘evidence-based policy’.
“This can, of course, be used as an excuse for delay. So, I guess the question is how much more evidence is needed for action?”
A UK government spokesperson said: “We are committed to leaving our environment in a better state than we found it through our 25 Year Environment Plan and the forthcoming Environment Bill.
“Over 25 years we will replenish depleted soils, rid our seas and rivers of the rubbish trashing our planet, cut greenhouse gas emissions, cleanse our air of toxic pollutants, and develop cleaner, more sustainable energy sources.
“The Environment Bill will also create a new environmental body, the Office for Environmental Protection, to hold us to account on this commitment.”
Microanalysis of Particle-Based Uranium, Thorium, and Plutonium in Nuclear Workers’ House Dust Mary Ann Liebert Publishers , Marco Kaltofen
:4 Feb 2019
Abstract
Scanning electron microscopy and energy dispersive X-ray analysis (SEM/EDS), a technique not routinely used to detect radiation, was used to identify radioactive particulate matter in house and environmental dust. The study focused on elements that are necessarily radioactive, including thorium, plutonium, americium, and uranium. Seventy-nine dust and 31 soil and sediment samples were collected from the Hanford Nuclear Reservation, Los Alamos National Laboratory, the former Rocky Flats Plant in Colorado, and from homes of workers or abutters of these nuclear facilities. Dusts containing percent levels of uranium, plutonium, americium, and both mineral and metallic thorium were detected outside of radiation-controlled areas. These radioactive dusts are a potential source of internal radiation exposure to nuclear site workers, or to their families via secondary contamination. Uranium and thorium-containing particles were fingerprinted as either natural minerals or processed industrial particles, based on elemental composition of the microparticles. Activities of individual uranium-, thorium-, or plutonium-bearing dust particles varied by five orders of magnitude, ranging from <0.005 mBq (millibecquerel) to 2,270 mBq. Hanford workplace dusts also had up to 564 ± 24 Bq/kg of137Cs. SEM/EDS techniques reliably detected environmental radioactivity in samples that had barely detectable results by gamma spectrometry. The technique was able to definitively show that thorium, plutonium, and uranium from nuclear facilities could be found in general population settings outside of radiation protection zones…………..
Conclusions
Dusts in this study contained radioactive particles of uranium, thorium, plutonium, and americium. This study found monazites, uranium mineral, and Th-P-REE particles that were likely of natural origin and industrial (plutonium-containing, metallic or metal oxide) radioactive microparticles.
Dust in the homes of workers and neighbors of Hanford, Los Alamos, and the former Rocky Flats nuclear facility contained radioactive microparticles connected to these sites. This creates potential radiation exposures outside of radiological protection zones. Given the small respirable size of these radioactive microparticles, they are a potential source of internal exposure from inhalation or ingestion.
SEM/EDS coupled with gamma spectroscopy and autoradiography proved a useful technique for distinguishing the origins of particulate-based radioisotopes that have both industrial and natural sources. Micron-sized radioactive industrial particles were detected in samples that had gross activity levels that were near background. This is an especially useful tool for nuclides, such as uranium and thorium, which have both natural and industrial sources. SEM/EDS distinguished metallic (more likely industrial) versus mineral (more likely natural or mining-related) forms of these elements by determining the complete elemental composition of each particle. https://www.liebertpub.com/doi/10.1089/ees.2018.0036?utm_source=sfmc&utm_medium=email&utm_campaign=EES+FP+Feb+8+2019&d=2%2F8%2F2019&mcid=83805056&
The returning residents of Fukushima’s nuclear disaster
Near site of Fukushima nuclear disaster, a shattered town and scattered lives, WP, By Simon Denyer, February 3 2019 NAMIE, Japan — Noboru Honda lost 12 members of his extended family when a tsunami struck the Fukushima prefecture in northern Japan nearly eight years ago. Last year, he was diagnosed with cancer and initially given a few months to live.
Today, he is facing a third sorrow: Watching what may be the last gasps of his hometown.
For six years, Namie was deemed unsafe after a multiple-reactor meltdown at the Fukushima Daiichi Nuclear Power Plant following a 2011 earthquake and tsunami.
In March 2017, the government lifted its evacuation order for the center of Namie. But so far, hardly anyone has ventured back.
Its people are scattered and divided. Families are split. The sense of community is coming apart.
“It has been eight years; we were hoping things would be settled now,” the 66-year-old Honda said. “This is the worst time, the most painful period.”
For the people of Namie and other towns near the Fukushima plant, the pain is sharpened by the way the Japanese government is trying to move beyond the tragedy, to use the 2020 Tokyo Olympics as a symbol of hope and recovery,a signthat life can return to normal after a disaster of this magnitude.
Its charm offensive is also tied up with efforts to restart the country’s nuclear-power industry, one of the world’s most extensive networks of atomic power generation.
Six Olympic softball games and a baseball game will be staged in Fukushima, the prefecture’s bustling and radiation-free capital city, and the Olympic torch relay will start from here.
But in Namie, much closer to the ill-fated nuclear plant, that celebration rings hollow, residents say.
This was a close-knit community of farmers, fishermen and potters — of orchards, rice paddies and cattle sandwiched between the mountains and the sea. It was a place where people celebrated and mourned as a community, and families lived together across generations.
That’s all gone. On the main street, a small new shopping arcade has opened. But a short walk away, a barber shop stands abandoned, its empty chairs gathering years of dust. A sign telling customers to make themselves at home is still displayed in a bar, but inside debris litters the floor. A karaoke parlor is boarded up. Wild boars, monkeys and palm civets still roam the streets, residents say.
Just 873 people, or under 5 percent, of an original population of 17,613 have returned. Many are scared — with some obvious justification — that their homes and surroundings are still unsafe. Most of the returnees are elderly. Only six children are enrolled at the gleaming new elementary school. This is not a place for young families.
Four-fifths of Namie’s geographical area is mountain and forest, impossible to decontaminate, still deemed unsafe to return. When it rains, the radioactive cesium in the mountains flows into rivers and underground water sources close to the town.
Greenpeace has been taking thousands of radiation readings for years in the towns around the Fukushima nuclear plant. It says radiation levels in parts of Namie where evacuation orders have been lifted will remain well above international maximum safety recommendations for many decades, raising the risks of leukemia and other cancers to “unjustifiable levels,” especially for children.
In the rural areas around the town, radiation levels are much higher and could remain unsafe for people to live beyond the end of this century, Greenpeace concluded in a 2018 report.
“The scale of the problem is clearly not something the government wants to communicate to the Japanese people, and that’s driving the whole issue of the return of evacuees,” said Shaun Burnie, senior nuclear specialist with Greenpeace. “The idea that an industrial accident closes off an area of Japan, with its limited habitable land, for generations and longer — that would just remind the public why they are right to be opposed to nuclear power.”
Today, Namie’s former residents are scattered across all but one of Japan’s 47 prefectures. Many live in the nearby town of Nihonmatsu, in comfortable but isolating apartment blocks where communal space and interaction are limited. With young people moving away, the elderly, who already feel the loss of Namie most acutely, find themselves even more alone.
A surprising new picture of ocean circulation could have major consequences for climate science, Some experts say the Atlantic Ocean circulation is already slowing down — but we’re just beginning to learn how it really works, WP By Chris Mooney, January 31 2019
It may be the biggest wild card in the climate system. Scientists have long feared that the so-called “overturning” circulation in the Atlantic Ocean could slow down or even halt due to climate change — a change that would have enormous planetary consequences.
But at the same time, researchers have a limited understanding of how the circulation actually works, since taking measurements of its vast and remote currents is exceedingly difficult. And now, a major new research endeavor aimed at doing just that has suggested a dramatic revision of our understanding of the circulation itself.
A new 21-month series of observations in the frigid waters off Greenland has led to the discovery that most of the overturning — in which water not only sinks but returns southward again in the ocean depths — occurs to the east, rather than to the west, of the enormous ice island. If that’s correct, then climate models that suggest the circulation will slow as the climate warms may have to be revised to take this into account.
……….. The new results come from the $ 32 million OSNAP, or “Overturning in the Subpolar North Atlantic,” program, the first attempt to comprehensively measure the circulation in the exceedingly remote regions in question. These icy seas, it is believed, are where cold, salty waters — which are extremely dense — sink below the sea surface into the depths, and then travel back southward again all the way to the Southern Hemisphere.
This “overturning” process is crucial because the sinking in the North Atlantic effectively pulls more warm, salty water northward via a system of currents that includes the Gulf Stream. This heat delivery, in turn, shapes climate throughout much of the region, and especially in Europe.
Better understanding of how the circulation works is key, since some scientists have already proposed that it is slowing down, with major consequences, including ocean warming and sea level rise off the U.S. east coast.
Global temperature maps in recent years have shown a strange area of anomalously cold temperatures in the ocean to the southeast of Greenland, along with very warm temperatures off the coast of New England.
The cold region — which has been dubbed the “cold blob” and also “warming hole” — is strikingly anomalous at a time when the Earth and its oceans are otherwise warming. And the suggestion has been that this represents a decline in the volume of heat being transported northward by the circulation.
Greenland ice melting four times faster than in 2003, study finds, Southwest part of the island could be major contributor to sea level rise, EurekAlert, 21 Jan 19, OHIO STATE UNIVERSITY COLUMBUS, Ohio – Greenland is melting faster than scientists previously thought–and will likely lead to faster sea level rise–thanks to the continued, accelerating warming of the Earth’s atmosphere, a new study has found.
Scientists concerned about sea level rise have long focused on Greenland’s southeast and northwest regions, where large glaciers stream iceberg-sized chunks of ice into the Atlantic Ocean. Those chunks float away, eventually melting. But a new study published Jan. 21 in the Proceedings of the National Academy of Sciences found that the largest sustained ice loss from early 2003 to mid-2013 came from Greenland’s southwest region, which is mostly devoid of large glaciers.
“Whatever this was, it couldn’t be explained by glaciers, because there aren’t many there,” said Michael Bevis, lead author of the paper, Ohio Eminent Scholar and a professor of geodynamics at The Ohio State University. “It had to be the surface mass–the ice was melting inland from the coastline.”
That melting, which Bevis and his co-authors believe is largely caused by global warming, means that in the southwestern part of Greenland, growing rivers of water are streaming into the ocean during summer. The key finding from their study: Southwest Greenland, which previously had not been considered a serious threat, will likely become a major future contributor to sea level rise………https://www.eurekalert.org/pub_releases/2019-01/osu-gim011419.php
Watchdog: Wild mushrooms OK to eat despite lingering Chernobyl radiation, YLE, 16 Jan 19, More than 30 years on, radiation from the Chernobyl disaster remains present in Finnish wild foods.
The Finnish Radiation and Nuclear Safety Authority (Stuk) says that fallout from the Chernobyl nuclear accident can still be detected in Finnish foods, but that it accounts for less than one percent of the average annual radiation dose for people in Finland.
The city of Helsinki’s urban environment division said on Monday that two samples of funnel chanterelle (or yellow leg) mushrooms it tested contained levels of radioactive caesium that exceeded the recommended maximum.
According to EU guidelines, food products offered for sale should not contain more than 600 becquerels per kilo (Bq/kg) of caesium-137. Mushrooms picked in Pälkäne in Pirkanmaa, south-central Finland had a reading of nearly 1,000 Bq/kg. Meanwhile those picked in Hyvinkää, some 60 km from the capital, contained 1,300 Bq/kg. Wild produce from around the country is widely sold at marketplaces in the capital…… https://yle.fi/uutiset/osasto/news/watchdog_wild_mushrooms_ok_to_eat_despite_lingering_chernobyl_radiation/10598680
Technology meant to help solve the world’s growing water shortage is producing a salty environmental dilemma.
Desalination facilities, which extract drinkable water from the ocean, discharge around 142 billion liters of extremely salty water called brine back into the environment every day, a study finds. That waste product of the desalination process can kill marine life and detrimentally alter the planet’s oceans, researchers report January 14 in Science of the Total Environment.
“On the one hand, we are trying to provide populations — particularly in dry areas — with the needed amount of good quality water. But at the same time, we are also adding an environmental concern to the process,” says study coauthor Manzoor Qadir, an environmental scientist at the United Nations University Institute for Water, Environment and Health in Hamilton, Canada.
Between human population growth and climate change, water is becoming increasingly scarce (SN: 8/18/18, p. 14). Desalination technology has become a viable solution to this problem and has grown exponentially in popularity since the 1980s. Almost 16,000 plants now operate worldwide.
Desalination relies on evaporation or specialized membranes to either chemically or electrically separate pure water from a stream of saltwater. But two streams always flow out of the system: one that becomes water that people can use, and another with the leftover, extra-salty brine, which is released back into the environment.
Previous evaluations didn’t assess how much brine these facilities produced, Qadir says. Scientists assumed that desalination facilities on average equally produced brine and pure water — one liter of brine for every liter of pure water. That turned out to be wrong.
Using data on the water sources and technology used at desalination facilities around the globe, Qadir and his colleagues estimated for the first time how much brine is discharged daily. For every liter of pure water made, they found that on average 1.5 liters of highly concentrated brine is released back into the environment. Per day, that value translates to more than half the daily volume of water pouring over Niagara Falls, with 70 percent of it originating from desalination plants in arid North Africa and the Middle East.
As brine re-enters the ocean, “it creates a kind of local environment,” Qadir says. The highly concentrated discharge, which can also contain metals and antifouling chemicals, is denser than seawater, so it flows as a salty plume to the seafloor and can poison marine organisms living nearby. Some brine can also still be hot from evaporative processes during desalination. Because hot water doesn’t hold oxygen as well as cold water, ocean areas where brine enters can become depleted of oxygen.
An international standard requiring wastewater treatment and the use of environmentally friendly chemicals in desalination discharge does exist, says Yoram Cohen, a chemical engineer at UCLA. “But whether all people follow it, I don’t know.”
Save for some scientific studies, not much is being done to resolve the issue, Qadir says. “At the government level, I don’t see that there is a serious attempt that has been made.”
Suggestions have been proposed for repurposing the brine, including for watering salt-tolerant agricultural fields, extracting metals such as magnesium or uranium, or harvesting salt versus mining for it. In terms of technology, you can take the brine “and evaporate it to recover the salt,” Cohen says. “But the price is huge.”
Depending on location and type of technology, desalination alone can cost between $0.50 and over $2 to produce 1,000 liters of drinkable water — about what two people in the United States use in a day. Further evaporating the brine waste only increases the cost.
Modern desalination technologies, such as graphene oxides, are becoming more cost effective and releasing less brine discharge (SN: 8/20/16, p. 22). But they are not universally distributed and are uncommon in the Middle East where desalination is most used. “We need to make sure that with our efforts, we are able to use more of those types of technology which produce more desalinated water than brine,” Qadir says.
Explainer: Why sea levels aren’t rising at the same rate globally, A spinning planet, melting ice sheets and warmer waters all contribute to sea level rise, Science news for Students, KATY DAIGLE, CAROLYN GRAMLING, JAN 10, 2019 The sea is coming for the land. In the 20th century, ocean levels rose by a global average of about 14 centimeters (some 5.5 inches). Most of that came from warming water and melting ice. But the water didn’t rise the same amount everywhere. Some coastal areas saw more sea level rise than others. Here’s why:
Swelling seawater As water heats up, its molecules spread out. That means warmer water takes up slightly more space. It’s just a tiny bit per water molecule. But over an ocean, it’s enough to bump up global sea levels……..
Land a-rising Heavy ice sheets — glaciers — covered much of the Northern Hemisphere about 20,000 years ago. The weight of all that ice compressed the land beneath it in areas such as the northeastern United States. Now that this ice is gone, the land has been slowly rebounding to its former height. So in those areas, because the land is rising, sea levels appear to be rising more slowly.
But regions that once lay at the edges of the ice sheets are sinking. ……..
Land a-falling, Earthquakes can make land levels rise and fall…….
Glaciers begone Melting glaciers also can add water to the oceans. But these huge ice slabs affect sea levels in other ways, too.
https://www.eurekalert.org/pub_releases/2019-01/hjap-hcp010419.php– 4 Jan 19, Whereas most of the ocean is responding to modern warming, the deep Pacific may be cooling, HARVARD JOHN A. PAULSON SCHOOL OF ENGINEERING AND APPLIED SCIENCES The ocean has a long memory. When the water in today’s deep Pacific Ocean last saw sunlight, Charlemagne was the Holy Roman Emperor, the Song Dynasty ruled China and Oxford University had just held its very first class. During that time, between the 9th and 12th centuries, the earth’s climate was generally warmer before the cold of the Little Ice Age settled in around the 16th century. Now, ocean surface temperatures are back on the rise but the question is, do the deepest parts of the ocean know that?
Researchers from the Woods Hole Oceanographic Institution and Harvard University have found that the deep Pacific Ocean lags a few centuries behind in terms of temperature and is still adjusting to the advent of the Little Ice Age. Whereas most of the ocean is responding to modern warming, the deep Pacific may be cooling.
The research is published in Science.
“Climate varies across all timescales,” said Peter Huybers, Professor of Earth and Planetary Sciences in the Department of Earth and Planetary Sciences and of Environmental Science and Engineering at the Harvard John A. Paulson School of Engineering and Applied Sciences and co-author of the paper. “Some regional warming and cooling patterns, like the Little Ice Age and the Medieval Warm Period, are well known. Our goal was to develop a model of how the interior properties of the ocean respond to changes in surface climate.”
What that model showed was surprising.
“If the surface ocean was generally cooling for the better part of the last millennium, those parts of the ocean most isolated from modern warming may still be cooling,” said Jake Gebbie, a physical oceanographer at Woods Hole Oceanographic Institution and lead author of the study.
The model is a simplification of the actual ocean. To test the prediction, Gebbie and Huybers compared the cooling trend found in the model to ocean temperature measurements taken by scientists aboard the HMS Challenger in the 1870s and modern observations from the World Ocean Circulation Experiment of the 1990s.
The HMS Challenger, a three-masted wooden sailing ship originally designed as a British warship, was used for the first modern scientific expedition to explore the world’s ocean and seafloor. During the expedition from 1872 to 1876, thermometers were lowered into the ocean depths and more than 5,000 temperature measurements were logged.
“We screened this historical data for outliers and considered a variety of corrections associated with pressure effects on the thermometer and stretching of the hemp rope used for lowering thermometers,” said Huybers.
The researchers then compared the HMS Challenger data to the modern observations and found warming in most parts of the global ocean, as would be expected due to the warming planet over the 20th Century, but cooling in the deep Pacific at a depth of around two kilometers depth.
“The close correspondence between the predictions and observed trends gave us confidence that this is a real phenomenon,” said Gebbie.
These findings imply that variations in surface climate that predate the onset of modern warming still influence how much the climate is heating up today. Previous estimates of how much heat the Earth had absorbed during the last century assumed an ocean that started out in equilibrium at the beginning of the Industrial Revolution. But Gebbie and Huybers estimate that the deep Pacific cooling trend leads to a downward revision of heat absorbed over the 20th century by about 30 percent.
“Part of the heat needed to bring the ocean into equilibrium with an atmosphere having more greenhouse gases was apparently already present in the deep Pacific,” said Huybers. “These findings increase the impetus for understanding the causes of the Medieval Warm Period and Little Ice Age as a way for better understanding modern warming trends.”
###
This research was funded by the James E. and Barbara V. Moltz Fellowship and National Science Foundation grants OCE-1357121 and OCE-1558939
A new scientific survey has found that the glaciers of the Arctic are the world’s biggest contributors to rising seas, shedding ice at an accelerating rate that now adds well over a millimeter to the level of the ocean every year.
That is considerably more ice melt than Antarctica is contributing, even though the Antarctic contains far more ice. Still, driven by glacier clusters in Alaska, Canada and Russia and the vast ice sheet of Greenland, the fast-warming Arctic is outstripping the entire ice continent to the south — for now.
However, the biggest problem is that both ice regions appear to be accelerating their losses simultaneously — suggesting that we could be in for an even faster rate of sea-level rise in future decades. Seas are rising by about three millimeters each year, according to NASA. That’s mainly driven by the Arctic contribution, the Antarctic and a third major factor — that ocean water naturally expands as it warms.
For Arctic ice loss, “the rate has tripled since 1986,” said Jason Box, first author of the new study and a scientist at the Geological Survey of Denmark and Greenland. “So it clearly shows an acceleration of the sea-level contribution.”
“Antarctica will probably take over at some point in the future, but during the past 47 years of this study, it’s not controversial that the Arctic is the largest contribution of land ice to sea-level rise,” he said.
Scientists in the United States, Chile, Canada, Norway and the Netherlands contributed to the work, published in Environmental Research Letters.
The Arctic is also losing floating sea ice at a rapid pace, but that loss does not contribute substantially to rising seas (though it has many other consequences). Sea ice losses closely match what is happening on land, which makes sense because both phenomena are being driven by the fast warming of the atmosphere in the Arctic, which has heated up at a rate much faster than seen in lower latitudes. Warming seas are also driving some of the ice loss.
Here’s the new study’s tally of where all the Arctic ice loss has come from since 1971: [diagram on original]
The total Arctic loss at present is 447 billion tons of ice per year — which Box calculated is about 14,000 tons of water per second. That’s for the period between 2005 and 2015. Between 1986 and 2005, the loss is calculated at around 5,000 tons per second — therefore, the rate has almost tripled.
Separate research has recently found that the Antarctic’s loss rate has also tripled in just a decade, reaching 219 billion tons per year from 2012 to 2017.
Assuming these numbers are correct and summing them together, the world’s polar regions are losing about 666 billion tons of ice to the ocean each year — amounting to a little bit less than two millimeters of sea-level rise annually.
Treating the Arctic as a whole can miss something, though, notes Christopher Larsen, a glacier expert at the University of Alaska at Fairbanks.
Namely, the Arctic acceleration documented in the study is really being driven by Greenland, which contains more than 20 feet of potential sea-level rise, dwarfing all other Arctic ice sources.
“With respect to the present rate of ice mass loss, and the increasing rates thereof, it is Greenland that has the most significant rate of increased mass loss in the present day,” Larsen said in an email.
“This is especially noteworthy as ultimately Greenland has the most ice to lose in the Northern Hemisphere,” he said. “As rapid as ice loss is now or may become anywhere in the north, the regional totals of ice mass within Alaska or the Arctic Canada are smaller than what Greenland holds.”
To give a sense of the scale of the Arctic losses, Box imagined what it would mean if they were distributed among Earth’s human population.
“If you take the 7.7 billion people on Earth and divide the present-day numbers, from 2005 to 2015, each person on Earth would have the equivalent of 160 liters per day, every day, every year,” Box said.
Sep 3, 2018 Ian Harvey In July of 2018, Andrew Thaler wrote for Southern Fried Science that there were at least two nuclear capsules, four unarmed weapons, and one armed nuclear weapon sitting on the ocean floor, that he was aware of.
His information was based on declassified U.S. Department of Defense narrative summaries of accidents involving U.S. nuclear weapons.
He noted that the documents he had access to only covered the period of time between 1950 and 1980. Any more recent data would still be classified. There is reason to believe that his estimated numbers for nuclear material in the oceans are far too low.
Business Insider in 2013 wrote that since 1950 there have been 32 nuclear weapon accidents, known as Broken Arrows, where an unexpected event involving nuclear weapons resulted in the firing, launching, theft, or loss of said weapon.
BI reported in this piece that there were six nuclear weapons that have been lost and never recovered. The time frames for the BI list continued into the 2000’s, but this is also a lowball number.
According to a 1989 article in the New York Times, however, there have been at least 50 nuclear warheads and nine reactors scattered on the ocean floors since 1956.
These were the result of various accidents on the part of U.S. and Soviet bombers, ships, and rockets, according to a study of naval accidents that was published by Greenpeace and the Institute for Policy Studies.
The study outlines 1,276 accidents, both nuclear and non-nuclear, on the part of the world’s navies, and has some, more limited, information on another 1,000 accidents. The study points out that the total number of incidents amounts to one major peacetime accident a week
Information for the study was gathered mostly through the Freedom of Information Act, which included American intelligence assessments of Soviet naval accidents.
Eighty days after it fell into the ocean following the January 1966 midair collision between a nuclear-armed B-52G bomber and a KC-135 refueling tanker over Palomares, Spain, this B28RI nuclear bomb was recovered from 2,850 feet (869 meters) of water and lifted aboard the USS Petrel (note the missing tail fins and badly dented “false nose”).
The authors also received information from the governments of other nations. The report said that the worst accident occurred in 1986, when a Soviet submarine sank 600 miles northeast of the Bermuda coast, depositing two nuclear reactors and 32 nuclear warheads on the bottom of the ocean.
That one accident left more nuclear material under the sea than the authors of the first two pieces posited, combined. The study also notes that it doesn’t reflect data on any of the “many hundreds” of Soviet accidents about which little is known, and suggested that the Soviet Navy has far more accidents than those of America.
The accidents are, for the most part, due to human factors, ranging from issues of faulty navigation to outright sabotage.
So far, the U.S. has admitted to knowing of one hydrogen bomb that is leaking radioactive material. That bomb was accidentally dropped into the sea south of Japan in 1965 by an aircraft carrier.
There is some likelihood that other bombs may have also begun to leak radiation into the water, and are just unknown as yet. Even if it hasn’t happened yet, the chances of such leaks will increase over time as the weapons degrade, having the potential to cause untold harm to the oceans and our planet as a whole.
Dosed by Chernobyl and atomic tests, reindeer and their herders are carrying a heavy nuclear burden, By Linda Pentz GunterFallout from Soviet atomic bomb tests over the Arctic Ocean, compounded by the 1986 Chernobyl nuclear power plant explosion, have left reindeer too radioactive to eat, even today. That may be good news for the reindeer, sort of. But it’s bad news for the indigenous Laplanders in Finland and Sami herders in Norway, who carry high levels of radiation in their own bodies as well as in the reindeer on which they depend for sustenance and sales.
Reindeer carry heavy radioactive doses, mainly of cesium-137, because they devour lichen, moss and fungi, which bioaccumulate radioactive deposits from fallout. Norway’s radioactive contamination is primarily from Chernobyl, made worse because it was snowing heavily at the time of the April 26 accident.
The Sami story is beautifully explained in this stunning photo essay by Amos Chapple and Wojtek Grojec for Radio Free Europe/Radio Liberty.
As the essay describes it, despite the length of time since the Chernobyl disaster, the fallout is a nasty gift that keeps on giving. “In 2014, there was a huge spike in radiation levels that scientists put down to a bumper season for mushrooms. Hundreds of Norwegian reindeer intended for slaughter had to be released back into the wild.” Levels apparently shot from 1,500 becquerels per kilogram to 8,200.
A video of Chapple and Grojec’s work, on Tech Insider, also explains the impact of cesium-137 fallout on reindeer and their herders. [0n originall]
Unfortunately, Norway’s “allowable” radiation standards are far higher than in other parts of Europe, at 3,000 becquerels per kilogram of food compared to the EU standard of 600 becquerels. When Chapple and Grojec were compiling their story, the herd they visited was testing at 2,100 becquerels, passing the Norwegian test for “safe”. The authors say that the higher levels were established by the Norwegian government in “response to radiation levels in reindeer that threatened the very existence of the Sami herders.”
This practice of simply moving the radiation goalposts to make dangerous levels safe still goes on today, of course, most notably in Japan. As was pointed out in an earlier story on our site, the Japanese government, eager to show the world that the Fukushima region could quickly be made safe for habitation, simply raised the “allowable” annual exposure rate from 1 millisievert to 20, an entirely unacceptable dose for most people, especially women and children.
In Finland, most of the persistent radiation levels are due to atomic testing during the Cold War. Measurements continue to be taken among the Lapland reindeer herders where cesium levels are ten times higher than in the rest of Finland. Although cesium levels in humans were a shocking 45,000 becquerels per kilo in the 1960s according to one report, they still hover at over 1,000 today.
The reduction in slaughter of reindeer comes with other side effects as well. As far back as 1997, it was already being observed that the increase in reindeer population, leading to “Over-grazing and trampling, is causing more damage to the fragile tundra than some of the world’s most seriously polluting factories,” wrote Geoffrey Lean in The Independent.
Now, as Russia begins using floating nuclear reactors to plunder the Arctic Ocean for oil, the region has been placed under threat of a radioactive catastrophe again. From both an economic and health perspective, neither the reindeer nor their indigenous herders can afford a second assault.
Burnham-on-Sea 13th Dec 2018 . Concern that Hinkley Point C will have ‘devastating’ impact on sea fish
numbers in Burnham. Proposals to scrap plans for an acoustic fish deterrent
system in the sea next to Hinkley Point C will have a ‘devastating’ impact
on fish stocks in the sea around Burnham-On-Sea and the Bristol Channel, it
has been predicted this week. Sea anglers in Burnham claim EDF’s plans
not to install a fish deterrent system around the cooling water intakes in
the channel will lead to “significant” numbers of fish being killed. https://www.burnham-on-sea.com/news/concern-over-hinkley-point-c/
Right to end life on Earth: Can corporations that spread climate change denialism be held liable?
If a corporation’s propaganda destroys the world, doesn’t that conflict with our right to live? Salon , MATTHEW ROZSA, DECEMBER 10, 2018
To facetiously paraphrase a line that I often hear from global warming deniers: Don’t be offended, I’m just asking questions.
It’s conventional wisdom that the right to free speech does not permit you to shout “fire!” in a crowded theater – but does that mean you have the right to claim there is no fire when a theater is ablaze?
This is the question posed by the existential crisis of man-made global warming, and it is one that doesn’t lend itself to an easy answer. Certainly it can be acknowledged that man-made global warming has forced us to re-examine other verities that once underpinned the modern liberal political order. Laissez-faire economic theory, which holds that state regulation of the economy is an unequivocal social ill, doesn’t stand up when you consider that insufficient environmental regulations got us into this mess and stronger ones will be necessary to mitigate the damage. A similar observation could be made about the consumerist ethos that drives free market economic models: A status quo of constant expansion may be economically healthy within the paradigm of capitalist markets, but it is devastatingly unsustainable when it comes to the fitness of our planet………
Michael E. Mann, a professor of atmospheric science at Penn State University, shared his own views on whether individuals who mislead the public about climate change should face penalties for doing so.
“In my book ‘The Hockey Stick and the Climate War,’ I state that those who knowingly misled the public and policymakers about the reality and threat of climate change must be held responsible for their actions, and that includes legal repercussions,” Mann told Salon. “Note that there is a distinction between those at the top (e.g., fossil fuel executives and lobbyists and the politicians in their pocket) who are guilty of misleading the public, and those at the bottom (the typical climate denying trolls we encounter on the internet) who in many cases are actually victims of the disinformation campaign.”………https://www.salon.com/2018/12/09/right-to-end-life-on-earth-can-corporations-that-spread-climate-change-denialism-be-held-liable/
Thanks to climate change, Earth’s freshwater supplies will never be the same again, Science News for Students, BETH GEIGER, DEC 6, 2018This is the fourth in a 10-part series about the ongoing global impacts of climate change. These stories will look at the current effects of a changing planet, what the emerging science suggests is behind those changes and what we all can do to adapt to them.
It’s January 2018 in Cape Town, South Africa. After three years of record low rainfall, reservoirs that supply this city’s water are dangerously low. The city is running out of water, and fast……….. Water world Our cool blue planet is covered in water. Just 2.5 percent of that water, however, is fresh. Of that, only about one third is liquid. The rest is locked up as ice.That isn’t much freshwater. Yet we depend on it for everything. In the United States, each person uses an average of 340 liters (90 gallons) per day at home. And that doesn’t include the water needed to grow our food or manufacture everything from clothes to cars to cell phones. It takes 3,400 liters (900 gallons) just to make one pair of jeans.
As climate changes, though, so does how much water is available. Water, climate and weather are connected in a never-ending loop called the water cycle. And like any natural system, change one part of it — whether it’s temperature, soil moisture or even how many trees are in a region — and everything else changes, too. Continue reading →