72
   

Global Warming...New Report...and it ain't happy news

 
 
Walter Hinteler
 
  2  
Reply Mon 7 Feb, 2022 10:01 am
It was one of the largest and most elaborate expeditions to the Arctic ever: From September 2019 onwards, the German research icebreaker Polarstern was underway in the Arctic for a good year.
Since its return in October 2020, researchers have been busy analysing the data collected during the Mosaic expedition. Now they have published three first review articles.

The papers, which were published tosay in the scientific journal Elementa, deal respectively with the processes in the atmosphere, snow and ice, and the processes in the ocean. Together they provide a first picture of the mechanisms of change in the Arctic, which is warming about twice as fast as the rest of the world - which not only has dramatic consequences for the ecosystems there, but also has a global impact on weather and climate.

Overview of the MOSAiC expedition: Snow and sea ice

Overview of the MOSAiC expedition—Atmosphere

Overview of the MOSAiC expedition: Physical oceanography

0 Replies
 
hightor
 
  2  
Reply Wed 9 Feb, 2022 06:23 am
Scientists raise alarm over ‘dangerously fast’ growth in atmospheric methane

As global methane concentrations soar over 1,900 parts per billion, some researchers fear that global warming itself is behind the rapid rise.

Quote:
Methane concentrations in the atmosphere raced past 1,900 parts per billion last year, nearly triple preindustrial levels, according to data released in January by the US National Oceanic and Atmospheric Administration (NOAA). Scientists says the grim milestone underscores the importance of a pledge made at last year’s COP26 climate summit to curb emissions of methane, a greenhouse gas at least 28 times as potent as CO2.

The growth of methane emissions slowed around the turn of the millennium, but began a rapid and mysterious uptick around 2007. The spike has caused many researchers to worry that global warming is creating a feedback mechanism that will cause ever more methane to be released, making it even harder to rein in rising temperatures.

“Methane levels are growing dangerously fast,” says Euan Nisbet, an Earth scientist at Royal Holloway, University of London, in Egham, UK. The emissions, which seem to have accelerated in the past few years, are a major threat to the world’s goal of limiting global warming to 1.5–2 °C over pre-industrial temperatures, he says.

Enigmatic patterns

For more than a decade, researchers have deployed aircraft, taken satellite measurements and run models in an effort to understand the drivers of the increase (see ‘A worrying trend’)1,2. Potential explanations range from the expanding exploitation of oil and natural gas and rising emissions from landfill to growing livestock herds and increasing activity by microbes in wetlands3.

“The causes of the methane trends have indeed proved rather enigmatic,” says Alex Turner, an atmospheric chemist at the University of Washington in Seattle. And despite a flurry of research, Turner says he is yet to see any conclusive answers emerge.

One clue is in the isotopic signature of methane molecules. The majority of carbon is carbon-12, but methane molecules sometimes also contain the heavier isotope carbon-13. Methane generated by microbes — after they consume carbon in the mud of a wetland or in the gut of a cow, for instance — contains less 13C than does methane generated by heat and pressure inside Earth, which is released during fossil-fuel extraction.

Scientists have sought to understand the source of the mystery methane by comparing this knowledge about the production of the gas with what is observed in the atmosphere.

By studying methane trapped decades or centuries ago in ice cores and accumulated snow, as well as gas in the atmosphere, they have been able to show that for two centuries after the start of the Industrial Revolution the proportion of methane containing 13C increased4. But since 2007, when methane levels began to rise more rapidly again, the proportion of methane containing 13C began to fall (see ‘The rise and fall of methane’). Some researchers believe that this suggests that much of the increase in the past 15 years might be due to microbial sources, rather than the extraction of fossil fuels.

Back to the source

“It’s a powerful signal,” says Xin Lan, an atmospheric scientist at NOAA’s Global Monitoring Laboratory in Boulder, Colorado, and it suggests that human activities alone are not responsible for the increase. Lan’s team has used the atmospheric 13C data to estimate that microbes are responsible for around 85% of the growth in emissions since 2007, with fossil-fuel extraction accounting for the remainder5.

The next — and most challenging — step is to try to pin down the relative contributions of microbes from various systems, such as natural wetlands or human-raised livestock and landfills. This may help determine whether warming itself is contributing to the increase, potentially via mechanisms such as increasing the productivity of tropical wetlands. To provide answers, Lan and her team are running atmospheric models to trace methane back to its source.

“Is warming feeding the warming? It’s an incredibly important question,” says Nisbet. “As yet, no answer, but it very much looks that way.”

Regardless of how this mystery plays out, humans are not off the hook. Based on their latest analysis of the isotopic trends, Lan’s team estimates that anthropogenic sources such as livestock, agricultural waste, landfill and fossil-fuel extraction accounted for about 62% of total methane emissions since from 2007 to 2016 (see ‘Where is methane coming from?’)

Global Methane Pledge

This means there is plenty that can be done to reduce emissions. Despite NOAA’s worrying numbers for 2021, scientists already have the knowledge to help governments take action, says Riley Duren, who leads Carbon Mapper, a non-profit consortium in Pasadena, California, that uses satellites to pinpoint the source of methane emissions.

Last month, for instance, Carbon Mapper and the Environmental Defense Fund, an advocacy group in New York City, released data revealing that 30 oil and gas facilities in the southwestern United States have collectively emitted about 100,000 tonnes of methane for at least the past three years, equivalent to the annual warming impact of half a million cars. These facilities could easily halt those emissions by preventing methane from leaking out, the groups argue.

At COP26 in Glasgow, UK, more than 100 countries signed the Global Methane Pledge to cut emissions by 30% from 2020 levels by 2030, and Duren says the emphasis must now be on action, including in low- and middle-income countries across the global south. “Tackling methane is probably the best opportunity we have to buy some time”, he says, to solve the much bigger challenge of reducing the world’s CO2 emissions.

nature
0 Replies
 
Walter Hinteler
 
  2  
Reply Sat 12 Feb, 2022 09:02 am
Europeans more likely to vote green after extreme weather events
Quote:
Trend has developed over six EU elections between 1994 and 2019 and is more marked in colder climates

Matching extreme weather events to voting patterns has revealed that in Europe people who have experienced flooding, heatwaves and forest fires are more likely to vote green. This trend has developed over six European elections between 1994 and 2019, a period when climate change has gone from a theoretical threat to voters to many having experienced devastating events not previously seen in their lifetimes.

The realisation that urgent action is needed for climate mitigation and adaptation has led voters to support green party candidates. Greens have done better wherever the calamities have been worst. The trend is more marked in the north and west of the EU where the climate is more moderate and colder, presumably because extremes have become more noticeable.

The researchers noted that the tendency to vote green was enhanced where the population was generally fairly affluent and economic conditions were good. When the economic conditions worsened, this factor again assumed greater importance in voting choices.

The European elections are by proportional representation, so that minority parties, which the greens are in all of the 34 countries involved, will get some seats even if their overall vote is relatively small. Currently greens hold 69 seats out of 705 in the European parliament.



Report in 'Nature': Climate change experiences raise environmental concerns and promote Green voting
0 Replies
 
Walter Hinteler
 
  2  
Reply Sun 13 Feb, 2022 01:14 am
Anomalies are a sign that global heating is changing behaviour of flora and fauna.

Blooming flowers, fledgling birds … the UK’s spring is early – and always will be
Mame
 
  2  
Reply Mon 14 Feb, 2022 12:20 pm
@Walter Hinteler,
How Bad Is the Western Drought? Worst in 12 Centuries, Study Finds.

Fueled by climate change, the drought that started in 2000 is now the driest two decades since 800 A.D.

ALBUQUERQUE — The megadrought in the American Southwest has become so severe that it’s now the driest two decades in the region in at least 1,200 years, scientists said Monday, and climate change is largely responsible.

The drought, which began in 2000 and has reduced water supplies, devastated farmers and ranchers and helped fuel wildfires across the region, had previously been considered the worst in 500 years, according to the researchers.

But exceptional conditions in the summer of 2021, when about two-thirds of the West was in extreme drought, “really pushed it over the top,” said A. Park Williams, a climate scientist at the University of California, Los Angeles, who led an analysis using tree ring data to gauge drought. As a result, 2000-2021 is the driest 22-year period since 800 A.D., which is as far back as the data goes.

The analysis also showed that human-caused warming played a major role in making the current drought so extreme.


More here:
https://www.nytimes.com/2022/02/14/climate/western-drought-megadrought.html
0 Replies
 
Walter Hinteler
 
  2  
Reply Tue 15 Feb, 2022 11:27 pm
More precise measurements indicate that the increase will happen “no matter what we do about emissions.”
Coastal Sea Levels in U.S. to Rise a Foot by 2050, Study Confirms
Quote:
Sea levels along the coastal United States will rise by about a foot or more on average by 2050, government scientists said Tuesday, with the result that rising water now considered “nuisance flooding” will become far more damaging.

A report by researchers from the National Oceanic and Atmospheric Administration and other agencies also found that, at the current rate of warming, at least two feet of sea-level rise is expected by the end of the century.
[...]
The report said that the calculated rise over the next three decades means that floods related to tides and storm surges will be higher and reach farther inland, increasing the damage.

What the report described as moderate or typically damaging flooding will occur 10 times more often by 2050 than it does today. Major destructive coastal floods, although still relatively rare, will become more common as well.

For communities on the East and Gulf coasts, the expected sea level rise “will create a profound increase in the frequency of coastal flooding, even in the absence of storms or heavy rainfall,” said Nicole LeBoeuf, director of the National Ocean Service.
0 Replies
 
Walter Hinteler
 
  2  
Reply Wed 16 Feb, 2022 02:01 pm
Oil firms’ climate claims are greenwashing, study concludes
Quote:
Most comprehensive scientific analysis to date finds words are not matched by actions

Accusations of greenwashing against major oil companies that claim to be in transition to clean energy are well-founded, according to the most comprehensive study to date.

The research, published in a peer-reviewed scientific journal, examined the records of ExxonMobil, Chevron, Shell and BP, which together are responsible for more than 10% of global carbon emissions since 1965. The researchers analysed data over the 12 years up to 2020 and concluded the company claims do not align with their actions, which include increasing rather than decreasing exploration.

The study found a sharp rise in mentions of “climate”, “low-carbon” and “transition” in annual reports in recent years, especially for Shell and BP, and increasing pledges of action in strategies. But concrete actions were rare and the researchers said: “Financial analysis reveals a continuing business model dependence on fossil fuels along with insignificant and opaque spending on clean energy.”

Numerous previous studies have shown there are already more reserves of oil and gas and more planned production than could be burned while keeping below the internationally agreed temperature target of 1.5C. In May 2021, the International Energy Agency (IEA) said there can be no new fossil fuel developments if the world is to reach net zero by 2050.

Oil companies are under increasing pressure from investors to align their businesses with climate targets. But their plans have faced scepticism, prompting the researchers to conduct the new research, which they said was objective and comprehensive.

“Until there is very concrete progress, we have every reason to be very sceptical about claims to be moving in a green direction,” said Prof Gregory Trencher, at Kyoto University in Japan, who worked with Mei Li and Jusen Asuka at Tohoku University.

“If they were moving away from fossil fuels we would expect to see, for example, declines in exploration activity, fossil fuel production, and sales and profit from fossil fuels,” he said. “But if anything, we find evidence of the reverse happening.”

“Recent pledges look very nice and they’re getting a lot of people excited, but we have to put these in the context of company history of actions,” Trencher said. “It’s like a very naughty schoolboy telling the teacher ‘I promise to do all my homework next week’, but the student has never worked hard.”

The new study, published in the journal PLOS One, found mentions of climate-related keywords in annual reports rose sharply from 2009 to 2020. For example, BP’s use of “climate change” went from 22 to 326 mentions.

But in terms of strategy and actions, the researchers found “the companies are pledging a transition to clean energy and setting targets more than they are making concrete actions”.

Chevron and ExxonMobil were “laggards” compared to Shell and BP, the researchers said, but even the European majors’ actions appeared to contradict their pledges. For example, BP and Shell pledged to reduce investments in fossil fuel extraction projects, but both increased their acreage for new exploration in recent years, the researchers said.

Furthermore, the analysis found Shell, BP, and Chevron increased fossil fuel production volumes over the study period. None of the companies directly releases data on their investments in clean energy, but information they provided to the Carbon Disclosure Project indicates low average levels ranging from 0.2% by ExxonMobil to 2.3% by BP of annual capital expenditure (capex). Separate analysis by the IEA indicates that investment in clean energy by oil and gas companies was about 1% of capex in 2020.

“Until actions and investment behaviour are brought into alignment with discourse, accusations of greenwashing appear well-founded,” the researchers said.

A spokesperson for ExxonMobil said: “The move to a lower emission future requires multiple solutions that can be implemented at scale. We plan to play a leading role in the energy transition, while retaining investment flexibility across a portfolio of evolving opportunities, including for example carbon capture, hydrogen and biofuels, to maximise shareholder returns.”

A Chevron spokesperson said: “We are focused on lowering the carbon intensity in our operations and seeking to grow lower carbon businesses along with our traditional business lines. We are planning $10bn in lower carbon investments by 2028.”

Shell’s spokesperson said: “Shell’s target is to become a net zero emissions energy business by 2050, in step with society. Our short, medium and long term intensity and absolute targets are consistent with the more ambitious 1.5C goal of the Paris Agreement. We were also the first energy company to submit its energy transition strategy to shareholders for a vote, securing strong endorsement.”

A spokesperson for BP said: “In 2020 BP set out our new net zero ambition, aims and strategy, and in 2021 completed the largest transformation of the company in our history to deliver these. Because this paper looks back historically over the period 2009-2020, we don’t believe it will take these developments and our progress fully into account.”

Trencher rejected the charge that the analysis was out of date: “We included the documents that were published during 2021, so the so-called data gap is only about six months and we don’t find any evidence of any new actions that would change any of our findings.”

“Unfortunately, the way the energy markets are structured around the world, fossil fuels still enjoy many [regulatory and tax] advantages and renewables are still disadvantaged,” he said.


PLOSE ONE: The clean energy claims of BP, Chevron, ExxonMobil and Shell: A mismatch between discourse, actions and investments

0 Replies
 
Walter Hinteler
 
  2  
Reply Tue 22 Feb, 2022 09:12 am
Huge waterfalls of melted ice rush through the crevasses in Greenland's ice sheet in summer. According to a new study, this generates heat that causes the glaciers to dissolve from the inside - even faster than expected.

The energy released is comparable to the largest power plants in the world. More than 82 million cubic metres of meltwater fell kilometres deep through the crevasses of the Store Glacier in Greenland alone on summer days, according to measurements by the polar research project "Responder". The resulting friction is by far the largest source of heat acting on the Greenland Ice Sheet, the University of Cambridge reports from a new study, which will also be published in the Proceedings of the National Academy of Sciences. According to the university, it provides the first concrete evidence for a previously unconsidered mechanism of how ice mass is lost.

University of Cambridge: Accelerating melt rate makes Greenland Ice Sheet world’s largest ‘dam’
0 Replies
 
Walter Hinteler
 
  3  
Reply Thu 24 Feb, 2022 02:14 am
Elsevier’s work with fossil fuel companies ‘drags us towards disaster’, climate researcher says.
Revealed: leading climate research publisher helps fuel oil and gas drilling
Quote:
Scientists working with one of the world’s largest climate research publishers say they’re increasingly alarmed that the company consults with the fossil fuel industry to help increase oil and gas drilling, the Guardian can reveal.

Elsevier, a Dutch company behind many renowned peer-reviewed scientific journals, including The Lancet and Global Environmental Change, is also one of the top publishers of books aimed at expanding fossil fuel production.

For more than a decade, the company has supported the energy industry’s efforts to optimize oil and gas extraction. It commissions authors, editors, and journal advisory board members who are current employees at top oil firms. Elsevier also markets some of its research portals and data services directly to the oil and gas industry to help “increase the odds of exploration success”.

Several former and current employees say that for the past year, dozens of workers have spoken out internally and at company-wide town halls to urge Elsevier to reconsider its relationship with the fossil fuel industry.

“When I first started, I heard a lot about the company’s climate commitments,” said a former Elsevier journal editor who agreed to speak on condition of anonymity. “Eventually I just realized it was all marketing, which is really upsetting because Elsevier has published all the research it needs to know exactly what to do if it wants to make a meaningful difference.”

What makes Elsevier’s ties to the fossil fuel industry particularly alarming to its critics is that it is one of a handful of companies that publish peer-reviewed climate research. Scientists and academics say they’re concerned that Elsevier’s conflicting business interests risk undermining their work.

Julia Steinberger, a social ecologist and ecological economist at the Université de Lausanne who has published studies in several Elsevier journals, said she was shocked to hear that the company took an active role in expanding fossil fuel extraction.

“Elsevier is the publisher of some of the most important journals in the environmental space,” she said. “They cannot claim ignorance of the facts of climate change and the urgent necessity to move away from fossil fuels.”

She added: “Their business model seems to be to profit from publishing climate and energy science, while disregarding the most basic fact of climate action: the urgent need to move away from fossil fuels.”

Elsevier and its parent company, RELX, say they are committed to supporting the fossil fuel industry as it transitions toward clean energy. And while Elsevier has emerged as an industry leader with its own climate pledges, a spokesperson for the company said they are not prepared to draw a line between the transition away from fossil fuels and the expansion of oil and gas extraction. She voiced concern about publishers boycotting or “canceling” oil and gas firms.

“We recognize that we are imperfect and we have to do more, but that shouldn’t negate all of the amazing work we have done over the past 15 years,” Márcia Balisciano, founding global head of corporate responsibility at RELX, told The Guardian.

Of the more than 2,000 scholarly journals that Elsevier publishes, only seven are specific to fossil fuel extraction (14 if you count special publications and subsidiaries). Those journals include Upstream Oil and Gas Technology, the editor-in-chief of which works for Shell, and Unconventional Resources, which is edited by a Chevron researcher. It also runs a subsidiary book publisher, Gulf Publishing, which includes titles such as The Shale Oil and Gas Handbook and Strategies for Optimizing Petroleum Exploration.

Two book cover images are shown side by side. The one on the left shows an illustration of an oil rig in a field with the title “Shale Oil and Gas Handbook: Theory, Technologies and Challenges”. The one on the right has the title text “Strategies for Optimizing Petroleum Exploration” in a maroon-colored box on a sage green background.
Two books published by Elsevier’s subsidiary, Gulf Publishing, which is entirely focused on the fossil fuel industry. Composite: Elsevier
Elsevier also provides consultancy services to corporate clients. For the past 12 years, it has marketed a tool called Geofacets to fossil fuel companies. Geofacets combines thousands of maps and studies to make it easier to find and access oil and gas reserves, in addition to locations for wind farms or carbon storage facilities.

The company claims the tool cuts research time by 50% and helps identify “riskier, more remote areas that had previously been inaccessible.” 

Top climate scientists, including those published in Elsevier’s own journals, however, say just the opposite must happen in order to avert a climate catastrophe. Limiting warming to 1.5 degrees Celsius or less requires a worldwide decrease in fossil fuel production with over 80 percent of all proven reserves being left in the ground.

“We will not comment on the practices of individual companies, but any actions actively supporting the expansion of fossil fuel development are indeed inconsistent” with the United Nations’ sustainable development goals, said Sherri Aldis, acting deputy director for the UN department of global communications.

RELX is an astoundingly profitable company, with annual revenues topping $9.8bn, about a third of which are brought in by Elsevier. Balisciano emphasizes that fossil fuel content represents less than 1 percent of Elsevier’s publishing revenue, and less than half of Geofacets’ revenue, which itself only represents around 2 percent of Elsevier’s earnings.

RELX and Elsevier say the bulk of their work supports and enables an energy transition via publications centered on clean energy. “We don’t want to draw a binary and we don’t think you can just flip a switch, but we have been reducing our involvement with fossil fuel activities while increasing the amount of research we publish on climate and clean energy,” said Esra Erkal, executive vice president of communications at Elsevier.

Elsevier is not alone in navigating relationships with both climate researchers and fossil fuel executives. Multiple other publishers of peer-reviewed climate research have signed on to the UN’s Sustainable Development Goals Publishers Compact while also partnering with the oil and gas industry in various ways.

An image shows the cover of an issue of The Lancet, with the title “The 2020 report of the Lancet Countdown on health and climate change”. The cover image is a silhouette of a child standing on a dark path in a wooded area.
The Lancet, one of Elsevier’s top journals, publishes an annual report on how climate warming affects human health. Photograph: The Lancet
The UK-based publisher Taylor & Francis, for example, signed the UN pledge and released its own net-zero commitments while also touting its publishing partnership with “industry leader” ExxonMobil, the oil company most linked to obstructionism on climate in the public consciousness. Another top climate publisher, Wiley, is also signed onto the sustainability compact while publishing multiple books and journals aimed at helping the industry find and drill for more oil and gas.

“It’s problematic,” said Dr. Kimberly Nicholas, associate professor of sustainability science at Lund University in Sweden, noting that while corporate greenwashing is rampant across multiple industries, the publishers of peer-reviewed climate research have a unique responsibility.

“If the same publisher putting out the papers that show definitively we can’t burn any more fossil fuels and stay within this carbon budget is also helping the fossil fuel industry do just that, what does that do to the whole premise of validity around the climate research? That is what’s deeply concerning about these conflicts,” she said.

Ben Franta, a researcher at Stanford University who has also published studies in Elsevier journals, notes that the publisher’s relationship with oil firms is indicative of just how entwined that industry is with so many other aspects of society.

“This all happens without the broader public knowing, and it operates to entrench the industry,” he said. “To effect a rapid replacement of fossil fuels, I believe these entanglements will need to be exposed and reformed.”

Elsevier, for its part, emphasizes the role of editorial independence. “We wouldn’t want to tell journal editors what they can and can’t publish,” Balisciano said. However, such conflicts often place researchers in a tough position to navigate.

James Dyke, assistant director of the Global Systems Institute at the University of Exeter, was surprised that Elsevier would be working to contradict climate researchers in this way.

“It’s hard to believe that a company that publishes research about the dangers of the climate and ecological crises is the very same company that actively works with oil and gas companies to extract more fossil fuels, which drags us towards disaster,” he said.
georgeob1
 
  -2  
Reply Thu 24 Feb, 2022 06:54 pm
@Walter Hinteler,
Time to release the WOKE thought police and Inquisitors !!!!!
hightor
 
  4  
Reply Fri 25 Feb, 2022 06:20 am
@georgeob1,
Quote:
Time to release the WOKE thought police and Inquisitors !!!!!

That's a pretty ignorant comment, even coming from a climate change denier like you.
The Guardian wrote:
Scientists and academics say they’re concerned that Elsevier’s conflicting business interests risk undermining their work.

Are you actually unable to understand why this fact might be troubling to researchers? Apparently you just have a knee jerk reaction to any story about climate science and reflexively defend corporate interests since there is nothing in the article about "WOKE thought police and Inquisitors". You people sure are obsessed with this "woke" stuff.
georgeob1
 
  -1  
Reply Fri 25 Feb, 2022 10:31 am
@hightor,
A rather self indulgent burst of closeminded, name-calling and intolerant prejudgment.

That a consulting company pursues business with people and organizations on both sides of a political issue is hardly a reason for the indignation you express and the retribution you apparently seek. That indeed merited my comments above.

There's a lot of space between the frantic demands of Climate change zealots and your so called "climate deniers". You don't really know where I stand in this rather broad space.
Some climate change supporters, like Bjorn Lundberg, believe that climate change is real, though less deadly than zealots often claim; and that managing it while developing new less polluting technologies will inflict far less suffering on humanity than the somewhat insane prescriptions they offer.
Categorical prejudgments such as yours are the hallmark of oppressive intolerance; completely opposed to dispassionate scientific inquiry & study, and are deserving of the criticism I offered.
hightor
 
  3  
Reply Fri 25 Feb, 2022 10:56 am
@georgeob1,
Quote:
A rather self indulgent burst of closeminded, name-calling and intolerant prejudgment.

That's a good description of your own post:
Quote:
Time to release the WOKE thought police and Inquisitors !!!!!


As I said, there's nothing about "thought police" in the article. Your dumb comment got the criticism it deserved. If you had said something intelligent you might have gotten a response more to your liking.

Quote:
Categorical prejudgments such as yours are the hallmark of oppressive intolerance; completely opposed to dispassionate scientific inquiry & study, and are deserving of the criticism I offered.

You've gone over the top with this idiotic excuse. I made no "categorical prejudgment", I simply pointed out the vapidity of your non-sequitur. Really, is "WOKE thought police and Inquisitors" your idea of "dispassionate scientific inquiry & study"? Sounds like juvenile name-calling to me. And no, mouthing simplistic prescriptions for how we can prevent climate change while burning more fossil fuel is just the latest permutation of climate change denial. I've watched you people subtly change your approach over the years as the evidence of warming has steadily increased. It's like the tobacco industry pushing low tar cigarettes.

(you mean Bjørn Lomborg)
hightor
 
  2  
Reply Fri 25 Feb, 2022 11:08 am
Limitless power arriving too late: Why fusion won't help us decarbonize

https://scx1.b-cdn.net/csz/news/800a/2022/limitless-power-arrivi.jpg

Quote:
I first heard the standard joke about fusion as an undergraduate physics student in the 1960s: Fusion power is 50 years away—and probably always will be.

More than 50 years later, we still don't have fusion. That's because of the huge experimental challenges in recreating a miniature sun on earth.

Still, real progress is being made. This month, UK fusion researchers managed to double previous records of producing energy. Last year, American scientists came close to ignition, the tantalizing moment where fusion puts more energy out than it needs to start the reaction. And small, fast-moving fusion startups are making progress using different techniques.

A limitless, clean source of baseload power might be within reach—without the nuclear waste of traditional fission nuclear plants. That's good, right?

Not quite. While we're closer than ever to making commercial fusion viable, this new power source simply won't get here in time to do the heavy lifting of decarbonisation.

We are racing the clock to limit damage from climate change. Luckily, we already have the technologies we need to decarbonise.

How much progress is being made on fusion?

Five seconds. That's how long the UK's Joint European Torus was able to sustain a fusion reaction, producing enough energy to run a typical Australian household for about three days. That's a small fraction of the energy needed to make the fusion reaction happen, which used two 500 megawatt flywheels. That amount of power would meet the peak needs of 100,000 average Australian households. So we are still a long way from getting a net energy benefit from fusion.

On a technical front, achievements like this are incredible. Nuclear fusion is the process that powers stars like the sun, and we are working to harness this for our own use.

https://scx1.b-cdn.net/csz/news/800a/2022/limitless-power-arrivi-1.jpg
Solar, wind and storage - the new electricity model.

At very high temperatures, light atoms such as hydrogen can combine to produce another element such as helium, releasing enormous quantities of energy in the process.

In the sun, these fusion reactions take place at temperatures about 10 million degrees. We can't do it at that temperature, because we don't have access to the enormous gravitational pressure at the center of the sun.

To achieve fusion on earth, we need to go hotter. Much hotter. Experiments like the one in the UK are able to superheat a body of gas called a plasma to inconceivable temperatures, reaching as high as 150 million℃. The plasma has to be confined by incredibly strong magnetic fields and heated by powerful lasers.

This temperature is far hotter than anywhere else in our solar system—even the center of the sun.

While the recent progress represents a major step forward, sober reflection suggests the dream of limitless clean energy from hydrogen is still a long way off.

On the megaproject front, the next step is the International Thermonuclear Experimental Reactor (ITER) being built in southern France. Far too big for any one country, this is a joint effort by countries including U.S., Russia, China, the UK and EU member countries.

The project is enormous, with a vessel ten times the size of the UK reactor and around 5,000 technical experts, scientists and engineers working on it. Famously, the project's largest magnet is strong enough to lift an aircraft carrier.

Even this enormous project is only expected to produce slightly more power than it uses—around 500 megawatts. The first experiments are expected by 2025.

To me, this illustrates how far away commercial fusion really is.

https://scx1.b-cdn.net/csz/news/800a/2022/limitless-power-arrivi-2.jpg
Construction of the International Thermonuclear Experimental Reactor megaproject seen from a drone as of October 2021.

Fusion won't get here in time


It will take decades yet to go from these promising experiments to a proven technology powering modern society. That means it simply will not get here in time to make a real contribution to slowing and reversing climate change.

To have a decent chance of keeping climate change below 2℃, we have to get to net zero emissions worldwide in under 30 years.

We can't wait. We have to decarbonise energy supply and energy use as quickly as possible.

Many countries are already moving at speed. The UK is planning to get to zero-emissions electricity within 12 years. States like South Australia and New South Wales should get there around the same time. The International Energy Agency predicts renewables will become the largest source of electricity generation worldwide by 2025.

The shift away from baseload

Even if fusion arrives, it would face major challenges due to the cost of the plants and the changing nature of the grid.

In the second half of the twentieth century, power stations became larger to achieve economies of scale. That worked, until recently. Only ten years ago, large coal-fired or nuclear power stations produced cheaper electricity than solar farms or wind turbines.

This picture has changed dramatically. In 2020, global average prices of power from new large wind turbines was 4.1 cents per kilowatt-hour, while solar farms were even cheaper at 3.7 c/kWh. The average for new coal? 11.2 c/kWh.

https://scx1.b-cdn.net/csz/news/800a/2022/limitless-power-arrivi-3.jpg
Fusion power is premised on the old baseload grid model, as seen in this EUROfusion diagram of a planned future fusion power plant.

Ever more favorable economics drove a massive investment in renewables in 2020: 127 gigawatts of new solar, 111 of new wind and 20 of hydro-power. By contrast, only 3GW of net nuclear power came online, while coal-fired power actually dropped.

As a result, we're seeing a global shift away from old models of baseload power, where power is generated in large power stations and transported to us by the grid.

These shifts are driven by cost. The price of electricity from renewables is now falling below the running costs of old coal-fired or nuclear power stations. Coal power requires digging the stuff up, transporting it, and burning it. Renewables get their power source delivered free of charge.

The idea of fusion power is alluring. There's a real appeal in the idea we could replace large coal and gas stations with one large clean fusion power plant. That, after all, is the selling point of the International Thermonuclear Experimental Reactor: to produce baseload power.

But will we need it? The pattern of power supply is changing. The massive take-up of solar power by households means we have now permanently shifted from the old model of large power stations to one where supply is distributed around the network.

It will be a technological marvel if we are finally able to build fusion plants in the second half of this century. It's just that they won't be in time.

Luckily for us, we don't need fusion. We already have what we need.

techxplore
Frank Apisa
 
  2  
Reply Fri 25 Feb, 2022 11:30 am
@hightor,
hightor wrote:

Limitless power arriving too late: Why fusion won't help us decarbonize

https://scx1.b-cdn.net/csz/news/800a/2022/limitless-power-arrivi.jpg
https://scx1.b-cdn.net/csz/news/800a/2022/limitless-power-arrivi-1.jpg
Solar, wind and storage - the new electricity model.


I am not a physicist...and, frankly, physics mystifies me. But, in the area of "producing limitless power" it has always seemed to me that we are working on the wrong problem.

No need to produce it. The sun does that for us.

The problem seems to be "how do we get the power from one place to another so that it can be used."

For instance, we could put solar arrays in space...or on the moon, sufficient to meet the total energy needs for the world...100X over. But transporting that energy to where it is needed (my refrigerator, for instance)...is the problem. Why can't that problem be solved? We manage to transport energy from windmills at sea to land...why not energy from space (or the moon) to land.

Is anyone working on that?

0 Replies
 
Walter Hinteler
 
  2  
Reply Fri 25 Feb, 2022 11:38 am
High Wycombe vigil implores senior Tory, who has questioned cost of net zero, to quit as trustee of Global Warming Policy Foundation.

Christians in MP Steve Baker’s seat pray for him to quit role on climate thinktank
Quote:
Protesters gathered in High Wycombe on Friday to implore their MP, Steve Baker, to quit as a trustee of the Global Warming Policy Foundation, a thinktank that has been accused of being one of the UK’s leading sources of climate scepticism.

Christians from the MP’s constituency prayed and sang Amazing Grace outside the constituency office, holding signs reading “Praying 4 Steve Baker”, “The Earth is what we all have in common”, “… And God created science”. Baker is an evangelical Christian.

Ruth Jarman, from Christian climate action group Operation Noah, led those assembled in prayer. She said: “I didn’t realise there was a connection between my faith and my environmentalism until I was in my 30s. I was walking down the street and suddenly remembered the first line of the Bible that states ‘in the beginning, God created the Earth.’

“We are knowingly trashing what God has made. That’s a hugely terrifying thought, really. I understand why some people have not made that connection, I’m here praying that Steve Baker makes that connection.”
0 Replies
 
georgeob1
 
  -2  
Reply Fri 25 Feb, 2022 11:48 am
@hightor,
hightor wrote:

As I said, there's nothing about "thought police" in the article. Your dumb comment got the criticism it deserved. If you had said something intelligent you might have gotten a response more to your liking.
I never suggested there was any explicit reference to it in the article. I merely pointed out that calling them out and cancelling the presumed villain is the currently fashionable next step for the Woke mob. You apparently can't handle that obvious truth.

hightor wrote:
Really, is "WOKE thought police and Inquisitors" your idea of "dispassionate scientific inquiry & study"? Sounds like juvenile name-calling to me.
It appears you badly misunderstand what I wrote. I made it very clear they were polar opposites.
hightor wrote:

And no, mouthing simplistic prescriptions for how we can prevent climate change while burning more fossil fuel is just the latest permutation of climate change denial.
A statement truly worthy of a dedicated, intolerant inquisitor [
hightor wrote:

I've watched you people subtly change your approach over the years as the evidence of warming has steadily increased. It's like the tobacco industry pushing low tar cigarettes.
Getting a bit paranoid? My statement about managing the consequences while avoiding exaggerating the phenomenon and inflicting worse outcomes on humanity in ill-conceived preventive measures was simply a far more rational approach.

hightor wrote:

(you mean Bjørn Lomborg)

Yes.
hightor
 
  2  
Reply Fri 25 Feb, 2022 01:00 pm
@georgeob1,
Quote:
My statement about managing the consequences while avoiding exaggerating the phenomenon and inflicting worse outcomes on humanity in ill-conceived preventive measures was simply a far more rational approach.

As far as I know, there are no plans to inflict hypothetical solutions any worse than what is actually being inflicted on us as we preserve the status quo. You, as with maxdancona, seem to latch on to the most alarmist warnings you can find in order to attack them as "ill-conceived", as if they were policy statements likely to be put into action instead of the pathetic cries of the powerless. The world continues to warm and governments continue to find excuses not to act.
georgeob1
 
  -2  
Reply Sat 26 Feb, 2022 09:07 pm
@hightor,
Not sure what you really mean here. It's not very clear just what are the actual consequences of global warming so far, except for a slight sea level rise (less than 2 inches ) and a slight warming. Nearly every slightly unusual weather event is automatically attributed to climate change, even in the face of statistical evidence to the contrary, and many good reasons to doubt the reasoning of the protagonists. Despite the frequent claims, hurricanes and violent storms are not significantly increasing in number or strength. (There is ample data on that issue).The increased property damage on coastlines due to storms is demonstrably a result of vast property development on shorelines that were previously undeveloped precisely because of the attendant risk. One however wouldn't get any of that in the breathless claims that are so frequently made.

The economic and human costs of many of the remedies that are being demanded by AGW zealots are a good deal more certain than are the supposed potential calamities used to justify them - a far too often forgotten element in all of this.

I also object to the government created "solutions" that are being imposed with so little consideration of the very real human costs involved in them. Our government's track record with bureaucratically managed programs for the domestic production of solar panels, added taxes on fuels & subsidies on less efficient solar & wind driven alternatives, that have progressed very little in either efficiency or total actual output, and which cannot ever alone support a 24/7 power grid, is hardly impressive or confidence-inspiring..

Far more important and significant is the idiotic insistence that current nuclear power technology cannot be considered as a "green" replacement for fossil fuels, even as loonie zealots, concerned about cow farts, demand the cessation of both meat production and the production of the fertilizers needed to grow plant-based substitutes. Nuclear PWR technology has proven itself over many decades as the safest, most flexible and reliable power generating technology available. Despite this we have created a regulatory structure for successive licensing events that is perfectly designed to make the allocation of the capital for their construction, an economic impossibility. Indeed we have now accumulated at least eight multi billion dollar plants that were constructed, tested, fueled and ready to operate, and then denied approval at the hands of an "intervener" who brought suit in accordance with a regulatory process, designed to prevent final licensing.

It takes ~ 1,200 contemporary, 300ft tower, 3MW wind turbines, distributed over many thousands of acres of land, to match the sustained output of a single standard PWR nuclear plant, (and the typical generating facility has two or three of these plants). Moreover the output of the nuclear plant is cheaper, more reliable and more easily controlled.

AGW zealots are very focused on forbidding or taxing the use of technologies they don't like, but take no detectable responsibility for the creation and operation of alternative reliable, affordable and effective alternatives. They simply leave the execution of their favorite fantasies by someone else, subject to government direction and targeted subsidies.. They rely on government regulation and enforcement to impose favored new solutions in situations that make no economic sense, and do so with little apparent concern for the added cost inflicted on the people so affected . A far more sensible policy is to first create (or better allow the creation of) efficient, reliable alternatives and then allow natural economic forces to drive the efficient implementation of the best of them (as chosen by market forces). Huge GHG emissions reductions recently achieved through the replacement of coal-fired power plants with cheaper, more efficient, and less costly gas turbine plants yielding 1/3rd the GHG emissions per unit of electrical energy produced. This was driven by the new availability of natural gas made available by the simple act of leasing Federal and other lands for fracking & gas exploration & extraction by independent entrepreneurs by our government. Normal market forces did all the rest in a very quickly and efficiently.
In stark contrast government controlled automobile design produced the Lada ( an ugly 2 cycle inefficient and uncomfortable plastic-bodied vehicle in Germany (of all places). We certainly don't need more of that.

Free economic initiatives, market competition and profit incentives promote far better, more creative and efficient solutions. Government control yields only the loss of freedom; ineffective & inefficient outcomes and eventual revolution.
glitterbag
 
  3  
Reply Sat 26 Feb, 2022 09:29 pm
@georgeob1,
Well, who wouldn't be persuaded after reading: My statement about managing the consequences while avoiding exaggerating the phenomenon and inflicting worse outcomes on humanity in ill-conceived preventive measures was simply a far more rational approach......Most of us would ignore the withering arrogance you generously spread over all of your inflated pronouncements. We sit at your feet and just glow in the embers of your intellect. Thank you George, for your overly burnished self-satisfied sense of self you share with the lessers on this forum. We are so gratified.

0 Replies
 
 

Related Topics

 
Copyright © 2024 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.22 seconds on 12/27/2024 at 03:01:12