Sunday, July 02, 2023

Sunak U-turn on wind farms in England draws wrath of green Tories

Prime minister under fire as government backtracks on plan for more onshore turbines to keep voters on side




Toby Helm
Political Editor
The Observer
Wind power
Sun 2 Jul 2023

Rishi Sunak is facing mounting criticism for putting politics above the fight against climate change, amid clear signs that ministers are backtracking on plans to allow more onshore windfarms in England before a general election.

The Observer understands that a much-vaunted government consultation on ending what has in effect been a ban on new onshore wind projects will lead to a minimal relaxation of planning rules – because ministers do not want to anger potential Tory voters who oppose huge wind turbines in their neighbourhoods.


On Saturday night – as the Conservative party threatened to split over green policy – the former Tory environment secretary and outgoing chair of the climate change committee, Lord Deben, said it was simply unacceptable that the government was still discussing whether it was in favour of onshore wind or not when it was widely recognised as one of the cheapest forms of energy generation. The danger was also that UK industry would lose out in the resulting green industrial revolution for renewable energy to the US, China and the EU.

Deben, who is retiring this weekend after 11 years as chair of the committee that officially advises government, told the Observer: “It is unacceptable to have spent so much time discussing something which should be immediate for government. Why we need to go through all this palaver [of consulting] I am not sure.

“In effect we have stopped onshore wind. Having a basic opposition to it is just not a sensible thing.”

On Friday, Sunak was rocked by the resignation from the government of Tory peer and green enthusiast Zac Goldsmith, who said the prime minister was “simply uninterested” in the environment and the climate emergency.

Goldsmith said in his resignation letter that the Tories would be punished by voters for the party’s “apathy in the face of the greatest challenge we have faced” and said his position had become untenable because of Sunak’s lack of commitment.

Sunak countered shortly afterwards in a letter suggesting Goldsmith’s departure had in fact been linked to No 10 asking him to apologise for having undermined the House of Commons privileges committee’s inquiry into Boris Johnson and Partygate.

The former prime minister Theresa May also broke ranks against Sunak on climate policy last week, saying the UK was falling behind other countries and had been too slow to act in response to subsidies for green industries introduced by the US and the EU.


Without a clear response the UK was “putting at risk its reputation as a leader in climate policy”, May said.

Instead of taking a lead on climate matters, Sunak and his ministers are, critics say, crudely trying to create a “wedge issue” with Labour over net zero policy in a general election, including attacking the opposition for its decision to oppose new oil and gas exploration in the North Sea.
Rishi Sunak at the second Ashes Test match at Lord’s on Saturday. 
Photograph: Kirsty Wigglesworth/AP

Two weeks ago energy secretary Grant Shapps accused Labour of becoming “the political wing of Just Stop Oil – and other eco-extremists who use ordinary people’s lives as their weapon”.

While such comments will have pleased green sceptics on the Tory benches, they also angered Conservatives who believe their party is sacrificing responsible green policy to address a global emergency for what it believes will be short-term political gain. They fear they will suffer in blue wall seats unless their party is seen to have a credible and serious approach to tackling the climate crisis.

At a meeting last week of RenewableUK, a not-for-profit trade association representing the green industry, the Tory MP and former energy minister Chris Skidmore, who wrote a widely acclaimed report for the government on net zero strategy, made clear he disagreed fundamentally with Shapps’s attack on Labour.

Chris Skidmore: ‘It is not an extreme opinion to believe that one day we are going to have to end our use of fossil fuels.’ 
Photograph: Jonathan Hordle/Shutterstock

“When it comes to the narrative of net zero, when it comes to the rhetoric we need to deploy, no one is in the pocket of Just Stop Oil. Nobody wants to see disruption on our streets. It simply is not an extreme opinion to believe that one day we are going to have to end our use of fossil fuels,” Skidmore said.

Sam Hall, director of the Conservative Environment Network, which includes many dozens of Tory MPs, said it would be a mistake for the Conservatives to make oil and gas a dividing line, as if it did then oil and gas rather than green energy would become the main subject of debate. He added: “The Conservatives should focus on their positive message around renewable energy ahead of the election, which has been one of their greatest achievements in government.”

James Robottom, head of onshore wind at RenewableUK, said there was now no expectation that ministers would make any significant changes to planning rules to allow more onshore wind projects in England as a result of its consultation.

He said his organisation was “bitterly disappointed” by the evident lack of movement that was clear from suggestions made in the process, and the fact that there had been no response from government to the industry’s views over the past three months. The result would be the loss of huge numbers of jobs and billions of pounds of domestic and overseas investment.

Ed Miliband, the shadow secretary of state for net zero, said: “Mainstream Conservatives are right to be alarmed by the climate failure and lurch towards a culture war on the part of Rishi Sunak and Grant Shapps.

“The Tory leadership is way out of line with the British people, who do not want to see the consensus for climate and environmental action broken.”

Robottom said obstacles to new onshore wind development would “severely hinder investment in the onshore wind industry and its supply chain due to the high level of risk and uncertainty they create. We are being denied the opportunity for thousands of new jobs and billions in private investment in England.”

He added: “Even if a few new projects will be able to get planning permission, it will be extremely difficult for them to source wind turbines, with markets in Germany, Scotland and elsewhere being far more attractive, and crucially with clear government backing and deployment targets.”


The Department for Levelling Up said it had no statement to make on the planning rules consultation other than that it was ongoing and that it would take time to consider responses.

No 10 promised last year to dismantle the effective ban on onshore windfarms in England, which was put in place in 2015 by tightening planning restrictions in the national planning policy framework. However, after pressure from rightwing Tory MPs, the most that is now expected are modest changes that will do little to boost the number of English windfarms.

The former prime minister David Cameron brought in the de facto onshore wind ban in 2015 after coming under pressure from more than 100 Tory MPs. As a result just 16 new turbines were granted planning permission in England between 2016 and 2020 – a 96% drop on the previous five years.

Recently the Guardian revealed that Ukraine had built more onshore wind turbines than England since it was occupied by Russian soldiers.

Only two onshore wind turbines have been installed in England since February last year, generating 1 megawatt (MW) of electricity in the Staffordshire village of Keele.

Ukraine’s Tyligulska wind power plant, meanwhile – the first to be built in a conflict zone – has begun generating enough clean electricity to power about 200,000 homes just 60 miles from the frontline in the southern region of Mykolaiv, with 19 turbines providing an installed capacity of 114MW.

Why The U.S. Has Become The Blackout Capital Of The Developed World

  • Power outages have increased 64% from the early 2000s while weather-related outages have soared 78%.

  • The United States now records more power outages than any other developed country.

  • A study by UC Berkeley and GridLab found that it will be economically feasible for renewable energy to power 90% of a reliable grid by 2035, while only depending on natural gas for 10% of annual electricity production.

Rolling blackouts, freezing homes and skyrocketing electricity prices. A few decades ago, power outages in vast swathes of the United States were relatively rare and would normally be seen as black swan events. Unfortunately, mass blackouts have now become a regular feature of modern American life. Power outages have increased 64% from the early 2000s while weather-related outages have soared 78%. According to one analysis, the United States now records more power outages than any other developed country, with people living in the upper Midwest losing power for an average of 92 minutes every year compared to just 4 minutes in Japan.

Climate change and extreme weather events are largely to blame for this sad state of affairs. But the U.S. is not an exceptional case, with Europe feeling the adverse effects of a rapidly changing climate just as keenly as, if not worse than, the U.S. A closer look at the problem reveals that one fuel could be at the center of the conundrum: natural gas. 

Over the past two decades, the shale revolution unlocked a deluge of cheap natural gas, and made it easier for the country to transition from coal-fired generation to natural gas plants. Indeed, natural gas is widely touted as the ‘bridge fuel’ as the world gradually moves away from coal as the primary fuel used to generate electricity to renewables thanks to natural gas having a much cleaner emissions profile than coal. Gas now makes up ~41% of U.S. power generation, more than double its share in Europe’s energy mix at 19.6%.

The harsh reality is that natural gas plants, even relatively modern ones, are proving to have the worst failure rate when faced with extreme weather compared with other generation methods. During last year’s Arctic Blast, gas units accounted for 63% of the failures while representing just 44% of the total installed capacity. The country’s vast network of gas plants and pipelines--the largest in the world--and the regulations that govern them simply were never designed or built without the realities of extreme weather in mind. Gas facilities aren’t uniformly winterized, with many relying on single gas pipelines for supply. Meanwhile, many generators lack the ability to burn an alternate fuel or keep back-up gas on hand in case of emergencies. 

More alarmingly, even the best gas generating facilities are showing a large degree of vulnerability. PJM Interconnection LLC is the operator of the country’s largest power grid, serving 65 million people in 13 states and Washington, DC, or about a fifth of Americans. The firm’s grid is generally considered to be one of the most reliable in the country thanks to its ample operating reserves and rich shale gas deposits. During the winter blast on Dec. 23, 2022, PJM called a “maximum generation emergency action,” meaning standby plants were supposed to run ramp up to full power. Whereas nearly 20% of those gas plants ran at 100% or more for at least an hour, more than 20% never got above even half capacity while many dropped to 0% output at some point during the emergency. PJM spokesperson Susan Buehler has conceded that generation performance during the storm “was not acceptable,” and added, “What we need, and what we are working on with all of our stakeholders, regulators and policymakers, is for all of our resources to perform when called upon.”

Mind you, PJM actually performed better than many neighboring grids, many of which reported widespread electricity interruptions or blackouts, leaving one to wonder how the country’s multiple, highly fragmented and aging grids will manage to stay afloat as Americans continue to consume ever increasing amounts of electricity. During the crisis, a large number of new-model combined-cycle gas plants failed, with some reporting mechanical issues, failures to start due to according to people familiar with the operations and official filings. Others couldn’t get the fuel frozen wells, falling pipe pressure or compressor station failures. Others failed to get gas because they are supplied by utility pipelines that prioritize households and businesses first.

That’s a crisis that’s coming. It’s coming a lot closer and a lot nearer and a lot faster than even I thought a year ago when I first said we’re facing a reliability crisis,’’ Mark Christie, a member of the Federal Energy Regulatory Commission, has told Bloomberg.

More Renewables And Grid Upgrades

Some experts suggest that extending the existing gas infrastructure can help solve the problem. Many, however, believe that grid upgrades and incorporating more renewable energy is the long-term solution.

For decades, the United States has been relying on an aging electrical grid that's increasingly unstable, underfunded and incapable of taking us to a new energy future. Despite being the wealthiest country in the world, the U.S. only ranks 13th in the quality of its infrastructure.

Indeed, our power grid is the weakest link in the ongoing energy transition.

A study by UC Berkeley and GridLab found that it will be economically feasible for renewable energy to power 90% of a reliable grid by 2035, while only depending on natural gas for 10% of annual electricity production. Unfortunately, whereas renewable power sources have grown dramatically in recent years, our aging electrical grid is simply incapable of fully integrating them into our energy use, leading to so much potential power wasted.

But, as is usually the case, the biggest challenge remains funding: a Wood Mackenzie analysis has estimated it would cost a staggering $4.5 trillion for the US. to fully decarbonize, including constructing and operating new generation facilities; investing in transmission and distribution infrastructure, making capacity payments, delivering customer-facing grid edge technology and more. Suddenly, the $13 billion that the Biden-Harris Administration, through the U.S. Department of Energy (DOE), has allocated to upgrading the national grid looks puny.

By Alex Kimani for Oilprice.com

Japan set to pour Fukushima water into Pacific, irking China

Shoko Oda and Isabel Reynolds - Bloomberg News (TNS)
Monday, July 3, 2023 

Japan is set to win approval to discharge more than a million cubic meters of treated water from the Fukushima nuclear disaster site into the Pacific Ocean, a contentious plan that’s soured ties with neighbors including China.

The International Atomic Energy Agency’s Director General Rafael Grossi will visit Japan from Tuesday to deliver a final report on the safety of the process and meet with officials including Foreign Minister Yoshimasa Hayashi. A domestic nuclear regulator is also set to issue a crucial assessment.

Both studies are poised to give backing to Tokyo Electric Power Co. to begin releasing the water — equivalent in volume to about 500 Olympic-size swimming pools — into the sea, a step that’s needed to allow full decommissioning of the Fukushima site following the 2011 earthquake and tsunami that triggered the world’s worst atomic disaster since Chernobyl.

Japan has assured other nations that the release of the water is safe, is in line with standard industry practice and that it’s necessary, because about 1,000 storage tanks at Fukushima will hit capacity early in 2024. Other countries with nuclear plants already safely discharge similar diluted waste offshore, according to the IAEA.

It also comes as Japan joins a wider global reappraisal of nuclear power, with several nations seeking to boost energy self-sufficiency by reviving idled reactors, adding plants or investing in new technology. Prime Minister Fumio Kishida is aiming to build on improving domestic support for the energy source, and Japan’s efforts to complete the closure of the Fukushima site are seen as a crucial in inspiring confidence.

Despite Japan’s diplomatic push, the discharge plan is complicating some global relationships.

The ocean is “not Japan’s private sewer,” Chinese Foreign Ministry spokesman Wang Wenbin said last month, warning the proposed release carries risks for the country’s neighbors and Pacific Island nations. Wang called it a selfish move “that puts the common interests of all humanity in jeopardy.”

Japanese cosmetics brands have been targeted by a viral campaign tied to the issue that spread unproven safety allegations on Chinese social media platforms. In South Korea, demand for sea salt has rocketed as consumers stockpile the condiment amid worries the release of wastewater could taint future supplies.

While the central government in Seoul hasn’t pushed back against Japan’s plans publicly, a survey by the Yomiuri newspaper and South Korea’s Hankook Ilbo conducted in May found 84% of respondents opposed the discharge. A separate poll found almost three-quarters of South Koreans surveyed didn’t trust a delegation of experts sent from Seoul to review Japan’s preparations.

The Pacific Islands Forum, a group of 18 nations including Fiji, Papua New Guinea and Australia, has urged Japan to consider alternatives and called for additional discussions on the risks.

“People’s fears and uncertainties in the region are real, however safely the release will be handled, and however minimal the risk is,” said Nancy Snow, a reputation security consultant in Tokyo and author of a book on Japan’s public diplomacy. “Their concerns cannot be taken lightly or dismissed.”

Japan announced in 2021 it planned a gradual release of about 1.3 million cubic meters of treated wastewater from the Fukushima Dai-ichi nuclear power plant that has accumulated at the site since 2011. Tepco cycles in water to keep debris and fuel at the wrecked nuclear reactors cool, and the contaminated liquid — along with other groundwater and rain — is processed to remove most radioactive elements. The treated water, which still contains tritium, has been collected and stored.

Tepco expects the fleet of about 1,000 storage tanks to reach maximum capacity between February and June next year and the utility has argued it cannot continue to clear space for additional vessels because that’s needed for other parts of the decommissioning process. Storing the water also carries risks of leaks, which are amplified by the nation’s status as one of the most earthquake-prone countries.

In one of its preliminary reports in April, the IAEA said Tepco had taken into account issues raised in previous safety reviews and had “made significant progress to update its plans,” signaling the agency is likely to grant final approval. Grossi will visit Fukushima during his trip to Japan and open an IAEA office at the site, the agency said Friday.

Tepco plans to mix the treated fluid with seawater to dilute the concentration of tritium to “well below” both Japanese government and World Health Organization guidelines, before discharging it into the ocean over the course of as long as 40 years through an undersea tunnel. Tritium has a radioactive half-life of a little over 12 years, according to the IAEA.

Japan’s government has not yet set any specific date to begin releasing the water, and has said it will continue to hold talks with local communities, including the fishing sector, to try to alleviate their concerns.

Releasing water from nuclear power plants is a standard practice and most operations globally release small amounts of tritium and other radioactive material into rivers and oceans, the IAEA said previously.

-------

(With assistance from Ben Westcott.)


©2023 Bloomberg News. 

 Distributed by Tribune Content Agency, LLC.
Record Temperatures in Warming Oceans Causes Chaotic Weather Patterns

July 02, 2023 
Deborah Block
Lobster fishermen work at sunrise, Sept. 8, 2022, off Kennebunkport, Maine. The waters off New England logged the second-warmest year in their recorded history in 2022, according to researchers.

Researchers say they are detecting a dramatic spike in ocean surface temperatures around the world — reaching as much as 5 degrees Celsius (9 degrees Fahrenheit) above normal in the North Atlantic — and they could rise even higher.

“It is very alarming, and as temperatures keep spiking, this is not unexpected,” said Kim Cobb, a climate scientist and professor of earth, environmental and planetary sciences at Brown University in Rhode Island.

As the oceans get warmer each year, scientists say they are triggering chaotic weather patterns around the world, including torrential downpours and intense heat waves that cause flooding and severe drought.

Climate scientists attribute much of the warming to so-called greenhouse gases and say that to prevent the most severe consequences, the use of fossil fuels must be cut in half by 2030.

The most recent increase has caused the most extreme ocean heat wave in the British Isles in 170 years, according to the Met Office, the United Kingdom’s national weather service.

“This is an off-the-charts heat wave in the oceans,” said John Abraham, a climate change scientist at the University of St. Thomas in Minnesota. “The temperatures we are seeing this year are a remarkable excursion from normal temperatures.”

Oceans, which cover 70% of the Earth, have a huge impact on weather.

“When the air blows over the oceans, the air warms up and gets more humid and that drives storms,” Abraham told VOA.

“The water vapor amplifies warming by trapping outgoing radiation from escaping and that feeds the storms,” noted Kevin Trenberth, a global warming expert and a scholar at the National Center for Atmospheric Research. “So, there is a huge magnifying effect.”

Large icebergs float away as the sun rises near Kulusuk, Greenland, Aug. 16, 2019.

A study in the journal Earth System Science Data published in April warns that oceans are heating-up more rapidly than previously thought, creating a greater risk for extreme weather, rising sea levels, and the loss of marine ecosystems.

Even a small increase in ocean temperature can have other profound effects, which include coral bleaching and more intense hurricanes.

“There is also the loss of ice, the disintegration of the Antarctic and Greenland ice sheets that are contributing to sea level rise earlier than we expected it to,” said Michael Mann, professor of environmental science at Pennsylvania State University.

There are many places in the world that will be warmer than usual this year, Abraham said.

“In South America, we expect both coasts to be warmer than average and the Caribbean and Central American regions to be both warm and dry. In large parts of Southeast Asia, we should expect drier conditions in the upcoming months.”

Adding to the already crucial situation, an El Niño has formed that is likely to bring extreme weather patterns later this year. An El Niño refers to a warming of the ocean surface in the central and eastern Pacific Ocean. Scientists say the phenomenon is not caused by global warming but may be exacerbated by it.

“It causes unprecedented but strong dry spells in many places, and droughts that may promote wildfires, such as those we’re seeing in Canada, and torrential rains in other places in the world,” said Trenberth.

“The temperatures will spike higher every time there is an El Niño,” said Abraham. “What we’re seeing now is a foretelling of our future unless we reduce our greenhouse emissions.”

“In a warmer world, we’re in for a very bumpy ride that includes extreme rainfall, mudslides, wildfires, drought and failed crop yields,” said Cobb of Brown University.

Mann said greenhouse gases need to be significantly reduced soon or the environmental consequences will become even worse.

“We need governments to provide incentives to move the energy and transportation industries away from fossil fuels and towards renewable energy,” he said.
‘It was an accident’: the scientists who have turned humid air into renewable power


Tesla speculated electricity from thin air was possible – now the question is whether it will be possible to harness it on the scale needed to power our homes

Ned Carter Miles
Sun 2 Jul 2023 

In the early 20th century, Serbian inventor Nikola Tesla dreamed of pulling limitless free electricity from the air around us. Ever ambitious, Tesla was thinking on a vast scale, effectively looking at the Earth and upper atmosphere as two ends of an enormous battery. Needless to say, his dreams were never realised, but the promise of air-derived electricity – hygroelectricity – is now capturing researchers’ imaginations again. The difference: they’re not thinking big, but very, very small.

In May, a team at the University of Massachusetts (UMass) Amherst published a paper declaring they had successfully generated a small but continuous electric current from humidity in the air. It’s a claim that will probably raise a few eyebrows, and when the team made the discovery that inspired this new research in 2018, it did.

“To be frank, it was an accident,” says the study’s lead author, Prof Jun Yao. “We were actually interested in making a simple sensor for humidity in the air. But for whatever reason, the student who was working on that forgot to plug in the power.”

The UMass Amherst team were surprised to find that the device, which comprised an array of microscopic tubes, or nanowires, was producing an electrical signal regardless.

Each nanowire was less than one-thousandth the diameter of a human hair, wide enough that an airborne water molecule could enter, but so narrow it would bump around inside the tube. Each bump, the team realised, lent the material a small charge, and as the frequency of bumps increased, one end of the tube became differently charged from the other.

“So it’s really like a battery,” says Yao. “You have a positive pull and a negative pull, and when you connect them the charge is going to flow.”

For their recent study, Yao’s team have moved on from nanowires, and instead are punching materials with millions of tiny holes, or nanopores. The device they have come up with is the size of a thumbnail, one-fifth the width of a human hair, and capable of generating roughly one microwatt – enough to light a single pixel on a large LED screen.

We were considered the freaks – the guys who were saying something completely impossible
Prof Andriy Lyubchyk, Catcher project

So what would it take to power the rest of the screen, or indeed a whole house? “The beauty is that the air is everywhere,” says Yao. “Even though a thin sheet of the device gives out a very tiny amount of electricity or power, in principle, we can stack multiple layers in vertical space to increase the power.”

That’s exactly what another team, Prof Svitlana Lyubchyk and her twin sons, Profs Andriy and Sergiy Lyubchyk, are trying to do. Svitlana Lyubchyk and Andriy are part of the Lisbon-based Catcher project, whose aim is “changing atmospheric humidity into renewable power”, and along with Sergiy they have founded CascataChuva, a startup intended to commercialise the research. They first began working on the idea in 2015, some time before Yao’s team at the UMass Amherst. “We were considered the freaks,” says Andriy. “The guys who were saying something completely impossible.”

In fact, trying to prove the worth of an early proof-of-concept at conferences had them literally red in the face. He says: “The signal was not stable and it was low. We were able to generate 300 milliwatts, but you had to put all your effort into your lungs in order to breathe enough humidity into the samples.”

They’ve come a long way since then, with Catcher and related projects receiving nearly €5.5m (£4.7m) in funding from the European Innovation Council. The result is a thin grey disc measuring 4cm (1.5in) across. According to the Lyubchyks, one of these devices can generate a relatively modest 1.5 volts and 10 milliamps. However, 20,000 of them stacked into a washing machine-sized cube, they say, could generate 10 kilowatt hours of power a day – roughly the consumption of an average UK household. Even more impressive: they plan to have a prototype ready for demonstration in 2024.

A device that can generate usable electricity from thin (or somewhat muggy) air may sound too good to be true, but Peter Dobson, emeritus professor of engineering science at Oxford University, has been following both the UMass Amherst and Catcher teams’ research, and he’s optimistic.

“When I first heard about it, I thought: ‘Oh yes, another one of those.’ But no, it’s got legs, this one has,” says Dobson. “If you can engineer and scale it, and avoid the thing getting contaminated by atmospheric microbes, it should work.”

He goes on to suggest that preventing microbial contamination is more an “exciting engineering challenge” than a terminal flaw, but there are far greater problems to overcome before this technology is powering our homes.
Visionary ambition: Nikola Tesla at work in his laboratory, c1900.
 Photograph: Pictorial Press Ltd/Alamy

“How do these devices get manufactured?” asks Anna Korre, professor of environmental engineering at Imperial College London. “Sourcing raw materials, costing, assessing the environmental footprint, and scaling them up for implementation takes time and conviction.”

Even once the remaining challenge of connecting thousands of these devices together has been overcome, cost remains a significant issue. “All new technologies for energy need to think of the ‘green premium’,” says Colin Price, a professor of geophysics at Tel Aviv University, referring to the additional cost of choosing a clean technology over one that emits more greenhouse gases. “The green premiums are huge at the moment for this technology, but hopefully would be reduced by R&D [research and development], investments, tax breaks for clean energies and levies on dirty energies.”

The Lyubchyks estimate that the levelised cost of energy – the average net present cost of electricity generation for a generator over its lifetime – from these devices will indeed be high at first, but by moving into mass production, they hope to lower it significantly, ultimately making this hygroelectric power competitive with solar and wind. For that to work, though, they’ll need investment, access to raw materials and the equipment to process them.

The existence of this type of energy isn’t in doubt. It’s about how we collect it
Prof Jun Yao, University of Massachusetts Amherst

While the UMass Amherst researchers are working with organic materials, which in theory can be produced with relative ease, the Catcher team have achieved superior results using zirconium oxide – a material of interest in fuel cell research. The Lyubchyks had hoped to establish a supply from their native Ukraine, which has rich deposits, but Russia’s continuing full-scale invasion of the country has forced them for the time being to work with relatively small amounts bought from China.

The team accept that it may take years to optimise a prototype and scale up production, but if they’re successful, the benefits are clear. Unlike solar or wind, hygroelectric generators could work day and night, indoors and out, and in many places. The team even hope one day to make construction materials from their devices. “Imagine you can construct parts of a building using this material,” Andriy says. “There’s no need to transfer the energy, no need for infrastructure.”

It may all seem like blue-sky thinking, and Tesla’s dreams of limitless electricity from the air are still a long way off, but Yao suggests we may find grounds for optimism among cloudier skies. “Lots of energy is stored in water molecules in the air,” he says. “That’s where we get the lightning effect during a thunderstorm. The existence of this type of energy isn’t in doubt. It’s about how we collect it.”


Canadian, US regulators publish joint TRISO report

30 June 2023


The joint report by the Canadian Nuclear Safety Commission (CNSC) and the US Nuclear Regulatory Commission (NRC) establishes a common regulatory position on tristructural isotropic (TRISO) fuel qualification, for use in the licensing of advanced reactor and small modular reactor (SMR) technologies.

A TRISO particle (Image: US Department of Energy)

The report is part of the cooperative activities established under a memorandum of cooperation on advanced reactor and SMR technologies signed by the two regulators in 2019. The CNSC and NRC subsequently selected Terrestrial Energy's Integral Molten Salt Reactor for their first joint technical review of an advanced, non-light-water nuclear reactor technology, which they completed in 2022.

The latest joint report provides a common understanding on the evidence fuel vendors need to demonstrate the acceptability of "pebbles" made from TRISO fuel. TRISO fuel comprises spherical kernels of enriched uranium oxycarbide (or uranium dioxide) surrounded by layers of carbon and silicon carbide, giving a containment for fission products which is stable up to very high temperatures.

According to the scope and objectives set out in the report, the two regulators aim to work together "to establish a common regulatory position on TRISO fuel qualification based on existing knowledge and to identify any potential analytical or testing gaps that would need to be addressed to enable TRISO use in advanced reactor licensing applications". The report aims to: provide the evidentiary basis to support regulatory findings for items associated with fuel qualification that are generically applicable to TRISO fuel based on currently available information; identify areas of TRISO fuel qualification that are design dependent; and highlight areas where additional information, testing, or both is still needed to support regulatory approval.

The NRC has worked with two vendors of advanced reactors that are proposing the use of TRISO fuel in their reactor designs, Kairos Power and X-energy. It anticipates that licensing activities with X-energy are likely to increase following that company's 2020 selection by the US Department of Energy to deliver a commercial TRISO fuel fabrication facility and a four-module version of its Xe-100 high-temperature gas-cooled reactor by 2027 as part of the department's Advanced Reactor Demonstration Program. Meanwhile, through its Vendor Design Review process, the CNSC has worked with two vendors - X-energy and Ultra-Safe Nuclear Corporation - that are proposing to use TRISO fuel in their advanced reactor designs.

The report, dated March 2023, was made public by the NRC on 29 June.

Researched and written by World Nuclear News

Lessons in sustainability, evolution and human adaptation, courtesy of the Holocene

Lessons in sustainability, evolution and human adaptation — courtesy of the Holocene
Botanical remains from El Gigante. Credit: Thomas Harper

The El Gigante rockshelter in western Honduras is among only a handful of archaeological sites in the Americas that contain well-preserved botanical remains spanning the last 11,000 years. Considered one of the most important archaeological sites discovered in Central America in the last 40 years, El Gigante was recently nominated as a UNESCO World Heritage site.

"No other location shows, as clearly as El Gigante," state UNESCO materials about the site's universal value, "the dynamic character of hunter-gatherer societies, and their adaptive way of life in the Central American highlands, and in Mesoamerica broadly during the early and middle Holocene."

Now, anthropologists Douglas Kennett and Amber VanDerwarker of UC Santa Barbara, UCSB postdoc Richard George and colleagues from multiple institutions have excavated and analyzed botanical macrofossils—such as maize cobs, avocado seeds or rinds—from El Gigante using modern technologies. Their results are published in the journal PLOS ONE.

"Our work at El Gigante demonstrates that the early use and management of tree crops like wild avocado and plums by at least 11,000 years ago," Kennett said, "set the stage for the development of later systems of aboriculture that, when combined with field cropping of maize, beans and squash, fueled human population growth, the development of settled agricultural villages and the first urban centers in Mesoamerica after 3,000 years ago."

Lessons in sustainability, evolution and human adaptation — courtesy of the Holocene
The El Gigante rockshelter in western Honduras. Credit: Alejandro Figueroa

The study provides a major update to the chronology of tree and field crop use evident in the El Gigante with 375 , finding that tree fruits and squash appeared early, around 11,000 years ago, with most other field crops appearing later in time—maize around 4,500 years, beans around 2,200 years ago. The initial focus on tree fruits and squash, Kennett noted, is consistent with early coevolutionary partnering with humans as seed dispersers in the wake of megafaunal extinction in Central America.

Tree crops predominated through much of the Holocene, and there was an overall shift to field crops after 4,000 years ago that was largely driven by increased reliance on maize farming.

"The transition to agriculture is one of the most significant transformations of our Earth's environmental and cultural history," Kennett said. "The domestication of plants and animals in multiple independent centers worldwide resulted in a major demographic transition in  that fueled the transition to more intensive forms of agriculture during the last 10,000 years. Agriculture also provided the economic foundation for urbanism and the development of state institutions after 5,000 years ago in many of these same regions."

The botanical materials at El Gigante, remarkably well preserved, reflect the transition from foraging to farming, providing a rare glimpse of early foraging strategies and changes in subsistence.

Unique in its location along the southern periphery of Mesoamerica, and for its lower elevation than the dry caves of central Mexico, the authors note, El Gigante serves as a macrobotanical archive for interactions and the flow of domesticated plants between Mesoamerica, Central America and South America. Broader still, it enables researchers to examine the long term evolutionary and demographic processes involved in the domestication of multiple tree and field crops.

Lessons in sustainability, evolution and human adaptation — courtesy of the Holocene
Archaeological excavation of El Gigante rockshelter. Credit: Tim Scheffler

"The quality of the plant preservation at El Gigante is simply unmatched, giving us a deeper understanding of how ancient Hondurans managed their forests, domesticated a variety of plant species and intensified their cultivation of key resources over millennia," said VanDerwarker. "What seems clear is that practices of forest management and field cultivation were closely linked and evolved in tandem."

And therein, Kennett added, some lessons for modern society can be inferred.

"Our work shows that different types of agricultural systems supported human populations in Central America and that some were more sustainable than others," he said. "Forest management and arboriculture persisted for thousands of years before it was eclipsed in importance by the expansion of maize farming after 4,000 years ago.

"The  provides an archive of human adaptation that should be considered in the context of anthropogenic alteration of our Earth's climate today. These ancient archives could help rural farmers in Central America adapt to changing conditions moving into the future."

More information: Douglas J. Kennett et al, Trans–Holocene Bayesian chronology for tree and field crop use from El Gigante rockshelter, Honduras, PLOS ONE (2023). DOI: 10.1371/journal.pone.0287195


Journal information: PLoS ONE 


Provided by University of California - Santa Barbara Maize from El Gigante Rock Shelter shows early transition to staple crop

Why recycling may not be the answer to the world’s plastic problem


Plastic pollution is acknowledged as a global crisis. Some groups say recycling is not the solution.

By Patty Winsa

Data Reporter
Thu., June 29, 2023

Around the world, plastic waste — everything from bottles and wrappers, parts in our phones and televisions to the foam in our mattresses — is acknowledged as a global crisis, endangering marine life and contaminating our water and food.

More than 170 countries are looking for a solution as part of a UN committee negotiating a legally binding agreement on reducing plastic waste.















 https://www.scientificamerican.com/article/why-recycling-isnt-the-answer-to-the-plastic-pollution-problemWhy Recycling Isn't the Answer to the Plastic Pollution ... 

Dec 13, 2022 ... This is unfortunately far from the truth. According to the Organisation for Economic Co-operation and Development, only 15% of plastic waste is ...


https://www.euronews.com/2018/04/19/why-recycling-is-not-the-answer-for-fighting-the-plastic-pollution-problem

May 29, 2018 ... Why recycling is not the answer for fighting the plastic pollution problem ... If you want to fight plastic pollution in the oceans it's better to ...


https://www.wbur.org/hereandnow/2023/05/31/recycling-plastic-waste

May 31, 2023 ... A recent study of one recycling plant found that the plastic recycling process creates microplastics that contaminate the air and water.

https://www.theguardian.com/world/2023/may/26/friday-briefing-why-recycling-plastic-may-not-be-as-good-for-the-planet-as-we-thought

May 26, 2023 ... In today's newsletter: a new report finds that recycling plastic is not an adequate solution to the pollution crisis. What should we do ...

https://www.lifeunpacked.com/blogs/resources/why-recycling-isnt-the-answer-to-the-global-plastic-problem

We tend to think that what gets recycled can be recycled indefinitely. Unfortunately this is not the case. The material an item is made from will determine ...

https://www.vox.com/down-to-earth/2023/6/7/23743640/plastic-pollution-un-treaty-oceans-waste

Jun 7, 2023 ... Only about 15 percent of plastic waste is collected for recycling worldwide, and of that, about half ends up discarded.

https://www.npr.org/2022/10/24/1131131088/recycling-plastic-is-practically-impossible-and-the-problem-is-getting-worse

Oct 24, 2022 ... A new report from Greenpeace found that people may be putting plastic into recycling bins — but almost none of it is actually being recycled ...

https://www.theatlantic.com/ideas/archive/2022/05/single-use-plastic-chemical-recycling-disposal/661141

May 30, 2022 ... Yet another problem is that plastic recycling is simply not economical. Recycled plastic costs more than new plastic because collecting, sorting ...

https://repurpose.global/blog/post/why-is-most-plastic-not-recycled

Did you know that 91 percent of plastic isn't recycled? Learn the factors that prevent higher rates of recycling and why some plastics are not recyclable.