Energy/Environment – Page 10 – artdiamondblog.com

New 98% Reflective White Paint Can End Global Warming

(p. A1) In 2020, Dr. Ruan and his team unveiled their creation: a type of white paint that can act as a reflector, bouncing 95 percent of the sun’s rays away from the Earth’s surface, up through the atmosphere and into deep space. A few months later, they announced an even more potent formulation that increased sunlight reflection to 98 percent.

The paint’s properties are almost superheroic. It can make surfaces as much as eight degrees Fahrenheit cooler than ambient air temperatures at midday, and up to 19 degrees cooler at night, reducing temperatures inside build-(p. A12)ings and decreasing air-conditioning needs by as much as 40 percent. It is cool to the touch, even under a blazing sun, Dr. Ruan said. Unlike air-conditioners, the paint doesn’t need any energy to work, and it doesn’t warm the outside air.

. . .

. . ., scientists have been urgently working to develop reflective materials, including different types of coatings and films, that could passively cool the Earth. The materials rely on principles of physics that allow thermal energy to travel from Earth along specific wavelengths through what’s known as the transparency or sky window in the atmosphere, and out into deep space.

Jeremy Munday, a professor of electrical and computer engineering at the University of California, Davis, who researches clean technology, said this redirection would barely affect space. The sun already emits more than a billion times more heat than the Earth, he said, and this method merely reflects heat already generated by the sun. “It’d be like pouring a cup of regular water into the ocean,” Dr. Munday said.

He calculated that if materials such as Purdue’s ultra-white paint were to coat between 1 percent and 2 percent of the Earth’s surface, slightly more than half the size of the Sahara, the planet would no longer absorb more heat than it was emitting, and global temperatures would stop rising.

. . .

While humans in such hot and picturesque places as Santorini and the aptly named Casablanca have long used white paint to cool dwellings, and municipalities are increasingly looking to paint rooftops white, Dr. Ruan said commercial white paints generally reflect 80 percent to 90 percent of sunlight. This means they still absorb 10 percent to 20 percent of the heat, which in turn warms surfaces and the ambient air. The Purdue paint, by comparison, absorbs so much less solar heat and radiates so much more heat into deep space that it cools surfaces to below-ambient temperatures.

For the full story, see:

Cara Buckley. “A Coat of Paint May Hold a Key To a Cool Planet.” The New York Times (Thursday, July 13, 2023): A1 & A12.

(Note: ellipses added.)

(Note: the online version of the story has the date July 12, 2023, and has the title “To Help Cool a Hot Planet, the Whitest of White Coats.”)

Seaweed Blob Disappears as Unpredictably as It First Appeared

(p. 19) For months, Florida’s usually picturesque coast was plagued by a rotting tangle of seaweed, known as sargassum. Then, as quickly as the stinking mass arrived, it began to disappear.

. . .

Last month, the amount of sargassum in the Gulf of Mexico dropped by a staggering 75 percent, Dr. Hu and colleagues at the University of South Florida Optical Oceanography Lab noted in a bulletin published [June 30, 2023].

. . .

But scientists don’t know why the decline was so rapid. One theory is that strong winds caused by recent tropical storms could have dissipated the sargassum into smaller clumps, or sunk it to the ocean floor, Dr. Hu said, making it hard to see from a satellite. “There could be other reasons, we just don’t know,” he added.

For the full story, see:

Livia Albeck-Ripka. “The Blob That Threatened Florida . . . Is Disappearing.” The New York Times, First Section (Sunday, July 9, 2023): 19.

(note: ellipses in story added; ellipsis in title in original.)

(Note: the online version of the story has the date July 7, 2023, and has the title “Good News, Florida. The Giant Seaweed Blob Has Shrunk.” The bracketed date was in the print, but not the online, version.)

Elderly Benefit Most from Air-Conditioning

(p. A18) The aging process makes older bodies generally less capable of withstanding extreme heat, doctors say.

“They’re at extremely high risk of heat stroke and death,” James H. Diaz, a professor of environmental and occupational health sciences at Louisiana State University’s School of Public Health, said of older people. “When we look at what happens with these heat waves, most of the deaths occur in the homebound elderly.”

In many communities, including in New Orleans and Houston, officials have opened cooling centers and shelters in recent weeks, with air-conditioned shuttle buses meandering through neighborhoods, picking people up. Programs are also in place to provide or repair air-conditioners or help people struggling to afford their electricity bills.

. . .

In . . . Orlando, Veronica King, 67, said she keeps her air-conditioner running even if she can’t afford to. “I have to figure out how to cover that bill,” she said, adding that she relies on machines that help her breathe. “When it’s hot, I can’t breathe.”

In Houston, where the heat index could reach 107 degrees on Sunday, Ms. Lowry and her husband, Jasper, 72, have come up with a compromise. They have two cars, neither with working air-conditioning. But they figured they could at least spare the money to repair it in one of them.

For the full story, see:

Shannon Sims and Rick Rojas. “Rising Temperatures Could Bring More Than Misery for Seniors.” The New York Times, First Section (Sunday, July 9, 2023): 18.

(note: ellipses added.)

(Note: the online version of the story was updated July 12, 2023, and has the title “Rising Temperatures Threaten More Than Misery for Oldest Americans.”)

With No New Transmission Lines, 80 Percent of Planned Biden Emissions Reduction May Not Happen

(p. A12) . . ., compare today’s renewable energy and transmission system to one estimate of what it would take to reach the Biden administration’s goal of 100 percent clean electricity generation by 2035. Transmission capacity would need to more than double in just over a decade.

There are enormous challenges to building that much transmission, including convoluted permitting processes and potential opposition from local communities.

. . .

The climate stakes are high. Last year, Congress approved hundreds of billions of dollars for solar panels, wind turbines, electric vehicles and other technologies to tackle global warming. But if the United States can’t build new transmission at a faster pace, roughly 80 percent of the emissions reductions expected from that bill might not happen, researchers at the Princeton-led REPEAT Project found.

Already, a lack of transmission capacity means that thousands of proposed wind and solar projects are facing multiyear delays and rising costs to connect to the grid. In many parts of the country, existing power lines are often so clogged that they can’t deliver electricity from wind and solar projects to where it is needed most and demand is often met by more expensive fossil fuel plants closer to homes and businesses. This problem, known as congestion, costs the country billions of dollars per year and has been getting worse.

. . .

Utilities are sometimes wary of long-distance transmission lines that might undercut their local monopolies.

For the full story, see:

Nadja Popovich and Brad Plumer. “Why America Is Not Ready for the Energy Transition.” The New York Times (Friday, June 16, 2023): A12.

(Note: ellipses added.)

(Note: the online version of the story has the date June 12, 2023, and has the title “Why the U.S. Electric Grid Isn’t Ready for the Energy Transition.”)

“Range Anxiety” Leads Chinese to Prefer Hybrids Over EVs

(p. B12) Don’t write off hybrid electric vehicles.

After Tesla, the most highly valued U.S.-listed EV company isn’t homegrown Rivian or Lucid but Li Auto, a Chinese manufacturer that went public in 2020 by listing American depositary receipts.

. . .

What is surprising is that Li has overtaken NIO to lead the new generation of Chinese startups. Li doesn’t make the purely electric vehicles that were popularized by Tesla and that have become the technological focus of other startups and most old-school car manufacturers. Instead, it specializes in extended-range EVs, which use a generator to power up the battery with gasoline if it runs out of juice.

. . .

The popularity of what is essentially a plug-in hybrid, albeit a cutting-edge one, is notable in the Chinese market, which has in many ways led the transition to EVs.

. . .

But Chinese charging infrastructure is patchy, leading to range anxiety. Brokerage Bernstein expects 65% growth in plug-in hybrid sales in China this year, versus 25% growth for pure EVs.

For the full commentary, see:

Stephen Wilmot. “Move Over EVs, Hybrids Are Hot in China.” The Wall Street Journal (Tuesday, Feb. 28, 2023): B12.

(Note: ellipses added.)

(Note: the online version of the commentary was updated February 27, 2023, and has the same title as the print version.)

Is Leonardo’s Ferry Moored Due to Global Warming or Due to Bureaucratic Credentialism?

(p. 4) On a recent sunny morning on the banks of the Adda River in northern Italy, schoolchildren on a class trip to Imbersago — the “Town of the Ferry of Leonardo da Vinci” — gathered next to a moored boat and listened as a guide explained how the flights of the river’s birds, the formations of its rocks and the workings of its ships inspired Leonardo’s genius.

“Why doesn’t it move?” one of the students interrupted, pointing to the ferry, which sat behind a chain and a sign reading, “Service suspended.” It looked like a deserted summer deck atop two rowboats.

. . .

. . . some of the townspeople say an Italian problem more daunting than climate change is the real culprit for the ferry’s immobility since May [2023].

“Bureaucracy,” said John Codara, who owns the gelato shop next to the ferry.

. . .

“I mean Leonardo wasn’t a moron,” he said, under a framed picture of Leonardo. He demonstrated how the ferry worked on a small wooden model made by a local pensioner — “It’s to scale; it’s worth 500 euros,” or nearly $550, and argued that low water and weak currents meant operators required elbow grease to move it across the cable connecting the two banks.

“The force of the ferry is these,” Mr. Codara said, pointing at his biceps.

What they did not need was an advanced nautical degree, he said, as he marched out of his cafe and made a beeline for a sign honoring “The Human Face of the Ferry” and its pilots over the past century. “Harvard, Harvard, Harvard,” Mr. Codara said with derision as he pointed at the names. “They all went to Harvard.”

Roberto Spada, 75, whose father was one of those ferrymen, said he helped navigate the ferry as a 12-year-old and was interested in helping out the town by doing it again as a volunteer.

“I thought with my license I could do it,” Mr. Spada told the mayor as they leaned against other signs posted next to the ferry that featured both Leonardo’s sketch and an excerpt from Dante’s “Inferno” about Charon, “ferryman of the damned.”

A retired truck driver and president of the local fishing association — which has the ferry as its logo — Mr. Spada had a boating license but seemed bewildered as the mayor explained all of the certifications and bureaucratic hoops that needed to be jumped through to pilot the ferry.

“It’s a really long process,” said Mr. Vergani, the mayor.

For the full story, see:

Jason Horowitz. “Leonardo’s Ferry Left High and Dry in a Warming Climate.” The New York Times, First Section (Sunday, April 23, 2023): 4.

(Note: ellipses, and bracketed year, added.)

(Note: the online version of the story was updated April 25, 2023, and has the title “Leonardo’s Ferry Left High and Dry by Global Warming and Red Tape.”)

Argentine Drought Research Shows That Not All Bad Weather Events Are Due to Global Warming

(p. A5) Lack of rainfall that caused severe drought in Argentina and Uruguay last year was not made more likely by climate change, scientists said Thursday [Feb. 16, 2023]. But global warming was a factor in extreme heat experienced in both countries that made the drought worse, they said.

The researchers, part of a loose-knit group called World Weather Attribution that studies recent extreme weather for signs of the influence of climate change, said that the rainfall shortage was a result of natural climate variability.

Specifically, they said, the presence of La Niña, a climate pattern linked to below-normal sea-surface temperatures in the Pacific that influences weather around the world, most likely affected precipitation.

. . .

Friederike Otto, a senior lecturer at Imperial College London who co-founded the group, said that the new research shows “that not every bad thing that is happening now is happening because of climate change.”

“It’s important to show what the realistic impacts of climate change are,” she said.

For the full story, see:

Henry Fountain. “Drought in Argentina Not Linked to Warming.” The New York Times (Friday, February 17, 2023): A5.

(Note: ellipsis, and bracketed date, added.)

(Note: the online version of the story has the date Feb. 16, 2023, and has the title “Scientists Wondered if Warming Caused Argentina’s Drought. The Answer: No.”)

Did Feds Bail Out Silicon Valley Bank (SVB) Because It Was “a Climate Bank”?

After the article quoted below appeared, the Feds decided to bailout the Silicon Valley Bank. They claimed that this was a selective action–not one they would equally apply to all failed banks.

(p. B1) “Silicon Valley Bank was in many ways a climate bank,” said Kiran Bhatraju, chief executive of Arcadia, the largest community solar manager in the country. “When you have the majority of the market banking through one institution, there’s going to be a lot of collateral damage.”

Community solar projects appear to be especially hard hit. Silicon Valley Bank said that it led or participated in 62 percent of financing deals for community solar projects, which are smaller-scale solar projects that often serve lower-income residential areas.

. . .

The collapse of Silicon Valley Bank threatens to derail what was a fast and growing part of the venture capital sector. More than $28 billion was invested in climate technology start-ups last year, up sharply from the year before, according to HolonIQ, a data provider.

For the full story, see:

David Gelles. “Bank’s Collapse Leaves Climate Start-Ups at Risk.” The New York Times (Monday, March 13, 2023): B1 & B4.

(Note: ellipsis added.)

(Note: the online version of the story has the date March 12, and has the title “Silicon Valley Bank Collapse Threatens Climate Start-Ups.”)

Scientist Latta Knows, but Cannot Prove, That Ivory-Billed Woodpecker Is Not Extinct

I respect and admire Dr. Latta for having the courage to affirm what he saw with his own two eyes. Other scientists should not be so quick to ‘give him the bird’ (so to speak ;).

(p. A19) If there’s new hope, it’s blurry. What’s certain: The roller coaster tale of the ivory-billed woodpecker, a majestic bird whose presumed extinction has been punctuated by a series of contested rediscoveries, is going strong.

The latest twist is a peer-reviewed study Thursday [May 18, 2023] in the journal Ecology and Evolution presenting sighting reports, audio recordings, trail camera images and drone video. Collected over the last decade in a Louisiana swamp forest, the precise location omitted for the birds’ protection, the authors write that the evidence suggests the “intermittent but repeated presence” of birds that look and behave like ivory-billed woodpeckers.

But are they?

“It’s this cumulative evidence from our multiyear search that leaves us very confident that this iconic species exists, and it persists in Louisiana and probably other places as well,” said Steven C. Latta, one of the study’s authors and director of conservation and field research at the National Aviary, a nonprofit bird zoo in Pittsburgh that helps lead a program that searches for the species.

But Dr. Latta acknowledges that no single piece of evidence is definitive, and the study is carefully tempered with words like “putative” and “possible.”

. . .

. . . Dr. Latta, the study co-author, insisted that he had seen one clearly with his own eyes. He was in the field in 2019 to set up recording units, and he figures he spooked the bird. As it flew up and away, he got a close, unimpeded view of its signature markings.

“I couldn’t sleep for, like, three days,” Dr. Latta said. “It was because I had this opportunity and I felt this responsibility to establish for the rest of the world, or at least the conservation world, that this bird actually does exist.”

For the full story, see:

Catrin Einhorn. “Experts Strive to Prove ‘This Bird Actually Does Exist’.” The New York Times (Friday, May 19, 2023): A19.

(Note: ellipses, and bracketed date, added. The online version of the article says that the print version appears on p. 21. My national edition of the print version appeared on p. 19.)

(Note: the online version of the story was updated May 18, 2023, and has the title “A Vanished Bird Might Live On, or Not. The Video Is Grainy.”)

The peer-reviewed paper, co-authored by Latta and mentioned above, is:

Latta, Steven C., Mark A. Michaels, Thomas C. Michot, Peggy L. Shrum, Patricia Johnson, Jay Tischendorf, Michael Weeks, John Trochet, Don Scheifler, and Bob Ford. “Multiple Lines of Evidence Suggest the Persistence of the Ivory-Billed Woodpecker (Campephilus Principalis) in Louisiana.” Ecology and Evolution 13, no. 5 (2023): e10017 https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.10017.

Feds Impose Tariffs on Imports of Paper-Thin Steel Needed to Make EV Engines

(p. A3) Large U.S. steelmakers are ramping up production of a hard-to-make, paper-thin steel to capture a fast-growing market for a material critical to powering electric vehicles.

. . .

Such electrical steel, which accounts for about 1% of all the steel produced annually in the world, already is in short supply for electric vehicles, executives said. Companies expect demand to accelerate faster than production as EV volumes expand in the coming years.

“It’s in limited supply and with very long lead times. Sometimes 50 or 52 weeks,” said Hale Foote, owner of Scandic Springs Inc., a San Leandro, Calif., company that uses high-grade electrical steel to make parts for scientific measurement devices.

. . .

More than 80% of the electrical steel produced comes from China, Japan and South Korea, all countries that are subject to U.S. tariffs or quotas on steel imports, industry analysts said.

. . .

(p. B2) “It takes intense focus. You have to have absolute consistency or you scrap the material,” said David Stickler, who led the investment group that built Big River Steel in Osceola, Ark., and then sold the mill to U.S. Steel in 2021. Mr. Stickler said he envisioned electrical steel being a core product at Big River when he started planning the mill nearly a decade ago.

. . .

Steel-industry executives said that creating more domestic capacity to make electrical steel for vehicles will likely take years, as steel companies acquire equipment and become proficient at the exacting production process.

“You can’t just buy the equipment and start making electrical steel. Those who’ve made the investment will have an advantage for the next five to 10 years,” Mr. Stickler said.

For the full story, see:

Tita, Bob. “Paper-Thin Steel Used to Power EVs Is in Short Supply.” The Wall Street Journal (Tuesday, March 28, 2023): B1-B2.

(Note: ellipses added. The online version is longer, but the passages quoted above appear in both versions.)

(Note: the online version of the story has the date March 27, 2023, and has the title “The Paper-Thin Steel Needed to Power Electric Cars Is in Short Supply.”)

Innovative Farmers Can Adapt to Scarcer Water

(p. D4) The Colorado River, Arizona’s largest water source, is so low that last month, for the first time in history, the federal government proposed cutting water allotments to three states that rely on the river, including Arizona. Climate change is parching soil and depleting aquifers already taxed by corporate agriculture. Large swaths of Arizona farmland are devoted to water-hungry crops like lettuce and hay, grown to feed livestock as far away as Saudi Arabia.

. . .

Drawing on lessons she learned at the Urban Farm, a Phoenix-based business that teaches home gardeners how to grow food in a dry climate, Ms. Norton turned her backyard “from bare-bones, dead-ground scratch” into a lush mix of garden and orchard. She’d be open to raising chickens as well, if not for the presence of predators like coyotes, roadrunners and rattlesnakes.

What appears wild is the result of careful planning. A mulberry tree provides shade for the dragon fruit growing around its trunk. The drip tape that waters apricot, plum and apple trees also irrigates Mexican primrose flowers and sweet potato vines below.

“These grapes are strategically placed to keep the afternoon sun off these young trees,” Ms. Norton said. “I take the leaves and give them to a lady four doors down. She uses them to make dolmas.”

Ms. Norton is an ardent member of the Phoenix area’s sprawling gardening community. She is now general manager of the Urban Farm, and owns a seed business with its founder, Greg Peterson.

. . .

A primary goal of gardeners like Ms. Norton is to naturally rejuvenate soil degraded by synthetic fertilizers and neglect. Zach Brooks started the Arizona Worm Farm to help.

Nearly halfway into a 10-year plan to establish a fully sustainable, off-the-grid farm, Mr. Brooks sees his project as proof of how quickly damaged land can be restored using natural methods. It includes gardens and a food forest, a dense collection of plants that support one another, comprising mostly fruits and vegetables. Together, they provide produce for a small farm store and meals for his 20 employees.

. . .

As challenging as it is to farm and garden around Phoenix, Sterling Johnson said it’s (p. D5) even more so in Ajo, about 100 miles south, which is even hotter and dryer.

“If we can do it out here,” he said, “we think you can do it anywhere.”