Mass extinction of species is underway – new UN report
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A million species face extinction due to humans, UN report finds https://www.heraldscotland.com/news/17592216.a-million-species-face-extinction-due-to-humans-un-report-finds/ Arts Correspondent, 24 Apr 19, UP to a million species face extinction due to the actions of humanity, a new UN report finds.
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The $70 trillion climate impact predicted as result of the melting of Arctic permafrost
Melting permafrost in Arctic will have $70tn climate impact – study https://www.theguardian.com/environment/2019/apr/23/melting-permafrost-in-arctic-will-have-70tn-climate-impact-study Jonathan Watts, Global environment editor
Study shows how destabilised natural systems will worsen man-made problem The release of methane and carbon dioxide from thawing permafrost will accelerate global warming and add up to $70tn (£54tn) to the world’s climate bill, according to the most advanced study yet of the economic consequences of a melting Arctic.
If countries fail to improve on their Paris agreement commitments, this feedback mechanism, combined with a loss of heat-deflecting white ice, will cause a near 5% amplification of global warming and its associated costs, says the paper, which was published on Tuesday in Nature Communications.
The authors say their study is the first to calculate the economic impact of permafrost melt and reduced albedo – a measure of how much light that hits a surface is reflected without being absorbed – based on the most advanced computer models of what is likely to happen in the Arctic as temperatures rise. It shows how destabilised natural systems will worsen the problem caused by man-made emissions, making it more difficult and expensive to solve.
They assessed known stocks of frozen organic matter in the ground up to 3 metres deep at multiple points across the Arctic. These were run through the world’s most advanced simulation software in the US and at the UK Met Office to predict how much gas will be released at different levels of warming. Even with supercomputers, the number crunching took weeks because the vast geography and complex climate interactions of the Arctic throw up multiple variables. The researchers then applied previous economic impact models to assess the likely costs.
The authors say their study is the first to calculate the economic impact of permafrost melt and reduced albedo – a measure of how much light that hits a surface is reflected without being absorbed – based on the most advanced computer models of what is likely to happen in the Arctic as temperatures rise. It shows how destabilised natural systems will worsen the problem caused by man-made emissions, making it more difficult and expensive to solve.
They assessed known stocks of frozen organic matter in the ground up to 3 metres deep at multiple points across the Arctic. These were run through the world’s most advanced simulation software in the US and at the UK Met Office to predict how much gas will be released at different levels of warming. Even with supercomputers, the number crunching took weeks because the vast geography and complex climate interactions of the Arctic throw up multiple variables. The researchers then applied previous economic impact models to assess the likely costs.
It would also add to global inequalitybecause most of the economic burden – equivalent to almost the entire world’s current annual GDP – is likely to be borne by countries in warmer poorer regions such as India and Africa, which are most vulnerable to a rise in temperatures.
It would also add to global inequalitybecause most of the economic burden – equivalent to almost the entire world’s current annual GDP – is likely to be borne by countries in warmer poorer regions such as India and Africa, which are most vulnerable to a rise in temperatures.
USA lawmakers increasingly worried about climate change causing flooding of nuclear plants
Flooding linked to climate change puts beaches, nuclear plants at risk https://www.axios.com/climate-change-flooding-waikiki-beach-nuclear-plants-f2c4da7b-0155-4749-a47d-2e606066ee52.html 22 Apr 19, An increasing risk of flooding across the U.S. from climate change has caused lawmakers — from Hawaii to the East Coast — to consider new measures to protect at-risk areas.
The big picture: The risks span from the nation’s natural jewels to some of its most important infrastructure. Rising sea levels mean that Hawaii’s Waikiki Beach could be underwater within the next 15 to 20 years — and an increasing number of U.S. nuclear plants were never designed to handle the flood risk from climate change.
- State lawmakers are considering spending millions for a coastline protection program aimed at defending the city from regular tidal inundations, AP reports.
- 54 of the 60 nuclear plants in the U.S. aren’t prepared for the flood risks expected due to climate change “Nineteen face three or more threats that they weren’t designed to handle,” Bloomberg reports.
Climate feedback loops already are making climate change worse
It’s already begun’: Feedback loops will make climate change even worse, scientists say
David Knowles, Editor, Yahoo News, April 22, 2019
When the United Nations Intergovernmental Panel on Climate Change (IPCC) released its dire report in October warning of humanity’s fast-approaching reckoning with global warming, one factor adding to the urgency was a new estimate about how much additional carbon dioxide was being added to the atmosphere as a result of the warming of Arctic permafrost.
With rising Arctic temperatures setting free a vast amount of carbon previously locked beneath permafrost, the additional greenhouse gases released into the atmosphere would speed up warming, the report concluded — and that, in turn, would further melt the permafrost.
It is “feedback loops” like that one that make climate change unpredictable and represent a threat of global warming spiraling out of control.
“It’s already begun,” Thomas Crowther, professor in the Department of Environmental Systems Science of ETH Zurich, told Yahoo News. “The feedback is in process.”
Crowther estimates that carbon dioxide and methane emissions from thawing soils are “accelerating climate change about 12 to 15 percent at the moment,” and said past IPCC reports that left out the feedback “were way more optimistic than they should have been.”
Almost every scientist studying the effects of climate change is worried about the extent to which feedback loops will hasten global warming. One of the most serious concerns is the “albedo effect,” the amount of the sun’s radiation the planet reflects back into space, mostly from the polar ice sheets. The warming that has already occurred has begun melting the ice caps, leaving the relatively dark ocean and land exposed to absorb solar radiation — further warming the planet and leading to more ice melt.
“The impact that it has on making the earth darker by removing all the snow and ice is estimated by some to be 25 to 40 percent of the warming that we’ve experienced,” Jennifer Francis, research professor at Rutgers University’s Department of Marine and Coastal Sciences, told Yahoo News. “In other words, global warming is that much worse. There’s a lot of ways these things are totaled all together.”
Feedback loops are not a root cause of the climate change problem, but they make the problem that much worse. When climatologists began seriously studying global warming in the 1970s, there was some doubt about how the feedback loops would operate. Scientists theorized there might also be negative feedback loops, which would slow global warming — for instance, by increasing cloud cover. But so far it has all gone in the opposite — wrong — direction.
“I’m not optimistic. It’s not just because of those feedbacks, it’s because we’ve already put so much carbon dioxide into the atmosphere and that carbon dioxide lasts a very long time,” Francis said. “A molecule of carbon dioxide, on average, lasts about 100 years in the atmosphere. So, we haven’t yet felt the impacts of the carbon dioxide that we’ve already put in the atmosphere. Even not thinking about feedbacks, we’re already got a lot more climate change built into the system just because it takes awhile for the climate system to adjust itself to this new level of greenhouse gases in the atmosphere. All the feedback that [happens is] just making that response even bigger than it would be otherwise.”
Francis has been researching how rising Arctic temperatures have been weakening the jet stream, causing shifts in weather and ocean current patterns that, in yet another feedback loop, warm the earth and further destabilize the jet stream.
“What we’re seeing is that the Arctic is warming much faster than the planet is farther south, making that north-south temperature difference much smaller and so there’s less of that fuel driving the jet stream wind,” Francis said. “That should cause the jet stream to take more of these big north-south swings. And the reason that’s important is because those waves in the jet stream are actually what create high- and low-pressure systems that we see on a weather map on TV and when you get those really big waves in the jet stream, they tend to move much more slowly, so those highs and lows we see on a weather map also tend to move much more slowly and so the weather conditions we see on the surface associated with those weather systems are much more persistent.”
Persistent weather patterns, such as periods of rain or drought lasting months, can have potentially devastating consequences, Francis said.
Harold Wanless, director of the University of Miami’s geological sciences department and a leading expert on sea level rise, has studied the rate at which the oceans have risen and retreated over millennia. He fears that a variety of feedback loops will contribute to a dramatic increase in sea level in the coming decades……
To Wanless, the evidence is clear that we’ve already reached a tipping point when it comes to the cascading impacts of climate change on sea level rise.
Once you start adding up these different feedbacks, because that’s the only thing we have to go on in the modern era, well, there are all these things that are speeding up ice melt, some of which we’re just becoming aware of, like the collapse of the high ice sheets. We’re just trying to figure out how fast and how dramatic that will be,” Wanless says. “A lot of them work together. The warm water getting in under the outlet fjords of Greenland and Antarctica that ends up detaching the ice from the substrate and once that happens, you can have this sort of automatic fracturing of the detached ice like a stack of books starting to splay out off a table.”
It’s sobering to realize the extent to which the planet’s ecosystem is interconnected. For years, relatively little was known about the vital role the Arctic played in keeping the world stable. As the permafrost has begun to thaw, however, the global ramifications have become unavoidable…….. https://finance.yahoo.com/news/its-already-begun-feedback-loops-will-make-climate-change-even-worse-scientists-say-090000011.html
In Ratnagiri’s Jaitapur, Fishermen Vehemently Opposed to Nuclear Power Plant
In Ratnagiri’s Jaitapur, Fishermen Vehemently Oppose Nuclear Plant. The Wire, 22 Apr 19
In Maharashtra’s Ratnagiri, the Sadak se Sansad team finds out why farmers are opposing the world’s largest nuclear power plant. In this special story from the Ratnagiri Lok Sabha constituency in Maharashtra, we speak to fishermen who have been protesting against the Jaitapur nuclear power project for over a decade. They say that the project will adversely affect their ecology and threaten their livelihoods. If completed, the plant will be the largest nuclear power generating station in the world. https://thewire.in/video/watch-in-ratnagiris-jaitapur-fishermen-vehemently-oppose-nuclear-plant
UK Business Leaders support Extinction Rebellion climate activists, and will work with them
Times 22nd April 2019 Business leaders have voiced their support for Extinction Rebellion, theenvironmental protest group that shut down parts of London last week,
calling for an “urgent redesign” of global industry in a letter to The
Times.
January, is one of 21 executives who have written in support of the
activists’ call to action on climate change. The group also includes Dale
Vince, founder of Ecotricity, the green energy provider, and Chris Davis,
director of corporate social responsibility at The Body Shop.
imposed on business are regrettable, as is the inconvenience to
Londoners,” the group write. “But future costs imposed on our economies
by the climate emergency will be many orders of magnitude greater.”
Business is being launched. Bosses, investors and corporate advisers will
meet activists to discuss how companies can counter climate change.
Electric cars to be cheaper to buy than petrol and diesel much sooner than expected.
Express 21st April 2019 One of the barriers preventing a lot of motorists from making theswitch from petrol and diesel to electric is the higher upfront cost.
However, by 2022 the cost of electric cars is set to top below that of
internal combustion engined (ICE) cars, claims new analysis from Bloomberg
New Energy Finance.
A FLOOD OF DANGEROUS NEW SCIENCE – PAUL BECKWITH
In the past 3 months, I brought you the science of climate change direct from specialists publishing top papers. To draw it together, we need a generalist with climate expertise. We need Paul Beckwith. Paul has two Masters degrees. He often teaches climate science at the University of Ottawa. But his tireless effort to teach extends to the Internet. On You tube, Paul Beckwith is by far the biggest teacher of climate science to the world via You tube.
KEY INDICATORS OF ARCTIC CLIMATE CHANGE
We have a new paper, published April 8th by scientists in Alaska and Denmark. The title is “Key Indicators of Arctic Climate Change: 1971–2017”. Lead author Jason Box said “The Arctic system is trending away from its 20th century state and into an unprecedented state, with implications not only within but beyond the Arctic.”
Those scientists seemed surprised that temperature was the “smoking gun” for all the changes in the Arctic. (That seems obvious to me, what about you?) On the other hand, the fastest moving ice body on Greenland, The Jakobshavn glacier, has not only slowed down but is gaining ice mass. Paul says that is a temporary phenomenon, and who knows – maybe the glacier as it moved got snagged on some land way down below.
THE LINGERING COLD BLOB IN EASTERN NORTH AMERICA
Could that slowdown in part of Greenland be connected to the long-lasting cold and snow in the North East, including in Paul’s hometown in Ottawa? Paul says he had “a glacier” of ice remaining in his front yard, and we talk about the cold blob of air hovering over eastern North America, punctuated by storms. Here’s his video on that.
Chat on Persistent Cold Blob over North America
The public is so focused on global warming, it is pretty hard to convince people that a depressing cold winter could also be influenced by climate change. Nobody wants to go protest in the cold, but when it’s hot, they want to go outside and enjoy themselves. So far, there doesn’t seem to be a good time to protest. Were there climate school strikes in Ottawa or in Quebec?
Some people think Paul is a radical climate scientist. But really the whole upper echelon of climate research institutes are now radical about climate change. They are practically screaming out warnings of disaster, and we talk about some of those in this interview. But despite Paul’s efforts and mine, the public still isn’t engaged. People fly all over the place, and dream about their next pickup truck with a big gas engine. It is an addictive dream. Do you expect a rapid awakening, or more years of deadly greenhouse gas emissions?
We just had another freak April storm where the temperature was expected to drop 60 degrees in Denver, going from 70 or 80 Fahrenheit to blizzards. Yet another very heavy snow storm hit Montana and Nebraska in April. They are calling it a “bomb cyclone“.
Then we had flooding in the mid-west of the U.S., right in key food production areas. I think that was a major event with long-lasting consequences. Mainstream the media forgot that story already. Of course, Paul Beckwith has a new video about that.
Why is weather in the Northern Hemisphere so weird?
SIMULTANEOUS HEAT WAVES – NEW INTERVIEW COMING UP!
I want to tell listeners about brand new science, still awaiting publication. It announces a new phenomenon in the world: simultaneous heat waves across the planet. Martha Vogel, a climate researcher from ETH Zurich, just presented the findings at a European Geosciences Union press conference in Vienna in the first week of April. Studying heat waves from 1958 to 2018, they discovered that only since 2010 has modern planet Earth experienced multiple extreme heat waves at the same time. For example extreme heat in the Mediterranean might also strike in the Arctic and Russia or North America at the same time. Transcontinental heat: that has terrible implications for food production and a lot more.
My interview with scientist Martha Vogel should be next week on Radio Ecoshock
THE NEW 2018 CLIMATE REPORT FROM THE WORLD METEOROLOGICAL ORGANIZATION (WMO)
Paul discusses this report in two videos, starting with this one State of the Climate: NOT Good at All
You can read that full report “WMO Statement on the State of the Global Climate in 2018” as a .pdf online here.
According to the WMO, in 2018 the heat content of the upper levels of the ocean were the highest ever recorded. That is so dangerous!
People get confused about the difference between ocean HEAT absorption (which is 93%) to greenhouse gas absorption by the sea, (which is 25%). Since 93% of our excess heat goes into the ocean, that means only 7% is causing the disruption we are feeling now! If the ocean takes less carbon dioxide, as scientists predict, then not only will there be more greenhouse gases, but those gases will remain longer, and become a larger share of our actual emissions in the atmosphere. If so, we have to cut off fossil fuels and other greenhouse sources pretty well immediately. Strange to say, but our industrial culture may depend on ocean chemistry and ocean physics.
In a BBC article about the World Meteorological Report for 2018, Australian climate scientist and Professor Samantha Hepburn said:
“We know that if the current trajectory for greenhouse gas concentrations continues, temperatures may increase by 3 – 5 degrees C compared to pre-industrial levels by the end of the century and we have already reached 1 degree.”
Three to five degrees C of warming is utter disaster!
SEA ICE AT BOTH POLES DECLINING
Paul Beckwith says Sea ice may be in that critical slowing down of phase-state before a collapse of sea ice. And for our southern listeners, there has been a huge fall in Antarctic sea ice. Just a few years ago it was still expanding…. https://www.ecoshock.org/2019/04/the-burning-question.html
Britain’s Nuclear Free Local Authorities (NFLA) notes that over 70 Welsh councils formally reject hosting nuclear waste dump
NFLA 18th April 2019 The Nuclear Free Local Authorities (NFLA) notes that over 70 Welsh unitary, county, city, town and community councils have passed resolutions formally opposing taking any interest in hosting a deep underground radioactive waste repository.
The figure was noted at a joint meeting in Menai Bridge organised by the NFLA Welsh Forum in conjunction with the groups PAWB, CADNO and CND Cymru. At a presentation provided by the NFLA Secretary, he noted that there had been real anger and frustration raised across Welsh and Northern Irish Councils in particular to the request made by the UK
Government for considering hosting a large deep underground repository to store over 60 years of higher activity radioactive waste, as well as possibly additional waste should new nuclear power stations ever be built.
Even in England, a number of nuclear site Councils have indicated their public opposition to hosting a repository. NFLA have noted some of these issues in its response to RWM regarding its consultation on how any proposed sites will be evaluated.
963 climate protesters arrested in London, as “Extinction Rebellion” gathers force.
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Extinction Rebellion: The People Risking Their Freedom For Climate Change | HuffPost Reports: UK Extinction Rebellion arrests close to 1,000 as protesters ‘pause rebellion’ ITV 21 Apr 19 Climate change protesters who have stopped traffic in a series of peaceful demonstrations across London will “pause” their rebellion in a bid to achieve their political aims, as the arrest total nears 1,000.Extinction Rebellion (XR) have announced they are switching disruptive tactics for political negotiations as they enter a second week of campaigning to have the Government declare a climate emergency.
The number of people arrested in connection with the protests has hit 963 and 40 people have been charged. Continue reading |
Great Thunberg at London Extinction Rebellion protest
We will never stop fighting’: Greta Thunberg joins London climate protest
Humanity is at a crossroads, Greta Thunberg tells Extinction Rebellion, Guardian, Vikram Dodd , Damien Gayleand Mattha Busby 22 Apr 2019
Swedish climate activist’s speech comes amid police action to clear protesters from Waterloo Bridge, Governments will no longer be able ignore the impending climate and ecological crisis, Greta Thunberg, the teenage climate activist, has told Extinction Rebellion protesters gathered at Marble Arch in London.
In a speech on Sunday night where she took aim at politicians who have for too long been able to satisfy demands for action with “beautiful words and promises”, the Swedish 16-year-old said humanity was sitting at a crossroads, but that those gathered had chosen which path they wish to take…….
Her speech came amid police efforts to forcibly clear Extinction Rebellion protesters from Waterloo Bridge as the group debated whether to continue its campaign of mass civil disobedience. Police said on Sunday night they had cleared all the protesters from Parliament Square ……. https://www.theguardian.com/environment/2019/apr/21/extinction-rebellion-london-protesters-offer-pause-climate-action
Criminal negligence of our leaders ignoring climate change – Tim Winton
Humanity survived the cold war because no one pushed the button. On climate change, the button has been pushed again and again.
I’ve been asking myself a question – and even posing it makes me queasy.
Is it too late – are we beyond saving?
As a culture and a polity, when it comes to climate change, have we arrived at a point where we are now expected – even trained – to abandon hope and submit to the inevitable?
OK, I guess that’s two questions. In good faith I can still say that the answer to the first is no. But I’d be a liar and a fool to give the same response to the second.
No, it isn’t too late. But we’ve squandered decades of opportunities to mitigate and forestall impacts and we’re making a pig’s breakfast of responding to what is now a crisis. Even so, humans are not yet beyond saving themselves from the worst ravages of global warming. There’s fight in us yet, even if it’s a bit shapeless.
The problem – and it’s an existential threat both profound and perverse – is that those who lead us and have power over our shared destiny are ignoring global warming to the point of criminal negligence. Worse than that, their policies, language, patronal obligations and acts of bad faith are poisoning us, training citizens to accept the prospect of inexorable loss, unstoppable chaos, certain doom. Business as usual is robbing people of hope, white-anting the promise of change. That’s not just delinquent, it’s unforgivable.
Over the last 15 years in Australia our national governments have failed to respond effectively to the challenge of climate change, and for most of that time we actually gave ourselves the luxury of calling it a challenge. Now it’s more of a crisis. And it’s not as if our leaders are incapable of producing a timely response to a crisis. After all, in 2009 the government took bold steps to avoid an economic depression….
The message implicit in our governments’ refusal to act is that we should all just suck it up – as in “climate change is bullshit, and even if it’s not there’s nothing you can do about it”. Once internalised, this narrative is profoundly dangerous, not only for individuals, but for the entire community. ……
So what hope for our kids? Why should we be surprised they’d walk out of school and march? Their futures are being traded away before their eyes. They see what many of their elders and betters refuse to acknowledge. That they’re being robbed…….
t’s time to make sharp demands of our representatives, time to remove those who refuse to act in our common interest, time to elect people with courage, ingenuity and discipline, people who’ll sacrifice pride, privilege and even perks for the sake of something sacred. Because there’s something bigger at stake here than culture wars and the mediocrity of so-called common-sense. It’s the soil under our feet, the water we drink, the air we breathe……https://www.theguardian.com/environment/2019/apr/20/our-leaders-are-ignoring-global-warming-to-the-point-of-criminal-negligence-its-unforgivable
Adani did not accept key scientific advice
Expert scientific advice on how to limit the impact of the Adani coal mine wasn’t accepted by the company, despite the environment minister saying so. SBS 18 Apr 19 Indian mining company Adani didn’t accept expert scientific advice by Geoscience Australia and CSIRO on how to limit the environmental impact of its Carmichael coal mine, documents have revealed.
Earlier this month, federal environment minister Melissa Price said Adani had “accepted in full” the advice from Geoscience Australia and the CSIRO, prompting her to approve the company’s groundwater management plans.
But documents from Geoscience Australia show Adani did not accept key advice and recommendations for its groundwater plan, the ABC reported on Thursday.. The findings included that the model used to determine the Carmichael coal mine’s impact was not fit for purpose.
Adani also refused to accept that a new model could show the mine would breach environmental approvals.
The company would not commit to corrective action if a new model showed greater environmental impacts than Adani said would occur.
The revelations come from handwritten notes by Geoscience Australia’s chief James Johnson from a briefing with the Department of Environment and Energy…….
Queensland Premier Annastacia Palaszczuk wants to see Adani’s rail plan before giving the Galilee Basin coal mine the final tick of approval, which has been met with resistance from the Indian company.
Former Greens leader Bob Brown is currently leading a convoy from Tasmania to Queensland, protesting against the controversial project. https://www.sbs.com.au/news/adani-did-not-accept-key-scientific-advice
The slow path to a carbon free Britain
Extinction Rebellion: what pushes people to drastic action on climate change?
Slow burn? The long road to a zero-emissions UK, Guardian, Robin McKie, Observer science editor, Sun 21 Apr 2019
Extinction Rebellion protesters want a carbon-free UK by 2025. But can the financial and political hurdles be overcome?
Many experts disagree, however. They argue that such an imminent target is completely impractical. “Yes, you could decarbonise Britain by 2025 but the cost of implementing such vast changes at that speed would be massive and hugely unpopular,” says Lord Turner, former chairman of the climate change committee.
Most expect the climate change committee will plump for 2050 as Britain’s ideal decarbonisation date. “2050 is do-able and desirable and would have an insignificant overall cost to the economy,” states Turner, who is now chairman of the Energy Transitions Commission. According to this scenario, developed nations, including Britain, would aim to achieve zero-emissions status by 2050 and then use the decarbonising technologies they have developed to achieve this goal – hydrogen plants, carbon dioxide storage vaults and advanced renewable generators – to help developing nations halt their greenhouse gas emissions by 2060.
Many experts disagree, however. They argue that such an imminent target is completely impractical. “Yes, you could decarbonise Britain by 2025 but the cost of implementing such vast changes at that speed would be massive and hugely unpopular,” says Lord Turner, former chairman of the climate change committee.
Most expect the climate change committee will plump for 2050 as Britain’s ideal decarbonisation date. “2050 is do-able and desirable and would have an insignificant overall cost to the economy,” states Turner, who is now chairman of the Energy Transitions Commission. According to this scenario, developed nations, including Britain, would aim to achieve zero-emissions status by 2050 and then use the decarbonising technologies they have developed to achieve this goal – hydrogen plants, carbon dioxide storage vaults and advanced renewable generators – to help developing nations halt their greenhouse gas emissions by 2060.
And the change has already been reflected in Britain’s power statistics. In 2013, 62.5% of UK electricity was generated by oil, coal and gas stations, while renewable provided only 14.5%. In 2018, the figure for oil, coal and gas had been reduced to 44% while renewables were generating 31.7%. It is a distinct improvement – though we have yet to be given a date when engineers expect the last UK fossil-fuelled power plant to produce its final watts of electricity and to emit its last puffs of carbon dioxide
“Decarbonising UK power production is going well,” says George Day, head of policy for the technology and innovation centre Energy Systems Catapult. “There is a clear path forward.” But as he points out, there are many other sources of carbon dioxide in the UK. “The next big challenge will be heating. Gas boilers are major carbon emitters and dealing with them is going to be very difficult.”
According to Day, about 90% of British people have gas boilers in their homes, most having been fitted relatively recently …
………In the end, it will simply not be possible to reduce Britain’s fossil-fuel emissions to zero, say scientists. To compensate, we will have to take carbon dioxide back out of the atmosphere. “That is the logical, inevitable consequence of trying to achieve zero net emissions in this country,” argues Corinne Le Quéré, of the University of East Anglia. “If you are looking for any net zero target then you have to remove carbon dioxide from the atmosphere.”
This can be done in three ways: naturally, by planting trees and shrubs that absorb carbon dioxide. Or artificially – on a larger scale – the gas can be removed as it is produced at a factory or power station that burns trees for energy.
Or it can be removed by huge numbers of man-made air filters, known as direct air capture. The carbon dioxide can be liquefied and stored underground in underground caverns, or old, depleted gas fields under the North Sea. This is known as carbon capture utilisation and underground storage (CCUS).
“In the end, your choice of replanting or of building underground storage facilities depends on how much carbon you will need to remove,” says Le Quéré. “Most calculations suggest Britain will need to take quite a lot of carbon dioxide out of the atmosphere to keep its net emissions at zero.”……….
UK carbon emissions have fallen for the sixth year running
This need for speed is shared by many other parts of the zero-emissions programme, as we have seen. It may seem odd given it is unlikely it will reach its conclusion for another three decades. Nevertheless, scientists are adamant that even if choose 2050 for our decarbonisation date, we need to act now.
This urgency of the task is emphasized by Joeri Rogelj at Imperial College London. “If the world limits emissions of carbon dioxide to no more than 420 billion tonnes this century, we will have a two in three chance of keeping global warming down to around 1.5C.
“However, if we go above to 580 billion tonnes then our chances will be reduced to 50-50. The problem is that in 2017 alone, a total of 42 billion tonnes of carbon dioxide was emitted in a single year. By that calculation, we clearly do not have a lot of time to waste.”https://www.theguardian.com/environment/2019/apr/21/long-road-to-zero-emissions-uk
Daunting task faces Japan as removal of Fukushima’s radioactive fuel rods is commenced
Nuclear fuel removal is small step in cleanup at Fukushima http://www.asahi.com/ajw/articles/AJ201904190031.html
April 19, 2019 Tokyo Electric Power Co., the operator of the crippled Fukushima No. 1 nuclear power plant, has started removing radioactive fuel rods from the fuel storage pool for one of the three reactors that melted down in the 2011 nuclear disaster.
Massive amounts of melted nuclear fuel debris remain in the cores or containment vessels of the No. 1 to No. 3 reactors, which melted down. In addition, many fuel rods, batched into assemblies, are stored in storage pools within the reactor buildings.
These pools could be seriously damaged if the plant is hit by another big earthquake or tsunami. Moving spent fuel from these pools to the safe common pool within the premises is an important step to preventing accidents and ensuring steady progress in the process of decommissioning the reactors.
All the 1,535 nuclear fuel assemblies that were in the No. 4 reactor building, which did not melt down because it was shut down at the time of the accident, were removed by the end of 2014. Since workers could enter the building, the operation was conducted in a normal manner.
By contrast, areas around the fuel storage pool for the No. 3 reactor remain inaccessible due to high levels of radiation. The situation requires the removal operation to be remotely conducted from a control room about 500 meters from the No. 3 reactor building.
The work involves putting nuclear fuel assemblies into special containers under water and lifting them up with a crane and putting them down onto the ground for transportation to the common pool. This is a tricky and risky mission that has to be carried out with great care and caution by using a monitor.
Initially, the process of removing the fuel rods from the storage pool for the No. 3 reactor was scheduled to start at the end of 2014. But it has been repeatedly postponed due to technical mishaps and other reasons. It was finally started after a delay of more than four years.
The plant operator, known as TEPCO, plans to relocate all 566 nuclear fuel assemblies that have been kept in the storage pool in the No. 3 reactor building by the end of March 2021.
To reduce the risks posed to the process by possible earthquakes and tsunami, it is desirable to carry out the work quickly. But making undue haste could cause problems and accidents that disrupt the process. Meeting the schedule should not be the top priority.
Experience and expertise to be accumulated through the work with the No. 3 reactor will come in handy for the same fuel removal work with the Nos. 1 and 2 reactors, which could be initiated as early as in fiscal 2023, which starts in April 2023.
The other two reactors, however, will pose even tougher challenges. The debris situation of the No. 1 reactor building is worse, while radiation levels within the No. 2 reactor building are higher.
It is vital to obtain sufficient experience and know-how through the process of removing fuel rods from the No. 3 reactor.
TEPCO needs to ensure steady progress in the process through effective and close information sharing with related manufacturers and other actors involved.
No decision has yet been made as to what to do with the spent fuel after being transferred to the common pool. This is a complicated and knotty issue that does not lend itself to an easy, quick solution, just like the problem of a rapidly increasing amount of radiation-contaminated water the plant is generating as the reactors are being flooded to cool the melted fuel debris and underground water keeps flowing in the reactor buildings.
In 2021, the utility plans to launch the even more challenging mission of removing melted fuel debris from one of the three reactors.
Prime Minister Shinzo Abe recently visited the Fukushima No. 1 nuclear plant for the first time in five years and promised the government’s committed leadership for the efforts to decommission the reactors and deal with polluted water.
The Abe administration should provide really strong and effective leadership for the long, grueling process in line with the prime minister’s pledge.
Both the government and TEPCO have a duty to move the decommissioning process steadily forward while winning support from the local communities through sincere and serious dialogue.
1.This month
Earth Day 1970 – 2018: Sea Changes
Honest Government Ad | Julian Assange
After Assange arrest, IMF gives $4.2B to Ecuador
Radioactive Show Keeping Western Australia Uranium Free
EVENTS
more info at Action Australia
May 1 -Port Augusta – Politics in the Pub
Keep Western Australia free from uranium mining – SIGN THE URANIUM FREE CHARTER
For international news go to https://nuclear-news.net/
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