Scientific American has surprising news about the possibility of black holes the size of an atom but containing the mass of an asteroid — the so-called "primordial black holes" formed after the birth of the universe which could solve the ongoing mystery of the missing dark matter.

These atom-sized black holes "may fly through the inner solar system about once a decade, scientists say... And if they sneak by the moon or Mars, scientists should be able to detect them, a new study shows." If one of these black holes comes near a planet or large moon, it should push the body off course enough to be measurable by current instruments. "As it passes by, the planet starts to wobble," says Sarah R. Geller, a theoretical physicist now at the University of California, Santa Cruz, and co-author of the study, which was published on September 17 in Physical Review D. "The wobble will grow over a few years but eventually it will damp out and go back to zero."

Study team member Tung X. Tran, then an undergraduate student at the Massachusetts Institute of Technology, built a computer model of the solar system to see how the distance between Earth and nearby solar system objects would change after a black hole flyby. He found that such an effect would be most noticeable for Mars, whose distance scientists know within about 10 centimeters. For a black hole in the middle of the mass range, "we found that after three years the signal would grow to between one to three meters," Tran says. "That's way above the threshold of precision that we can measure." The Earth-Mars distance is particularly well tracked because scientists have been sending generations of probes and landers to the Red Planet...

In a coincidence, an independent team published a paper about its search for signs of primordial black holes flying near Earth in the same issue of Physical Review D. The researchers' simulations found that such signals could be detectable in orbital data from Global Navigation Satellite Systems, as well as gravimeters that measure variations in Earth's gravitational field.
"For decades physicists thought dark matter was likely to take the form of so-called weakly interacting massive particles (WIMPs)," the article points out. "Yet generations of ever more sensitive experiments meant to find these particles have come up empty."

California astrophysicist Kevork Abazajian tells the site that now in the scientific community, "Primordial black holes are really gaining popularity."

J. Doyne Farmer is the director of the complexity economics program at the Institute for New Economic Thinking in Oxford's research and policy unit. And he reminds us that solar and wind energy "are very likely to get even less expensive and grow quickly," pointing out that "the rate at which a given kind of technology improves is remarkably predictable." The best-known example is Moore's Law... Like computer chips, many other technologies also get exponentially more affordable, though at different rates. Some of the best examples are renewable energy technologies such as solar panels, lithium batteries and wind turbines. The cost of solar panels has dropped an average of 10% a year, making them about 10,000 times cheaper than they were in 1958, the year of their pioneering use to power the Vanguard 1 satellite. Lithium batteries have cheapened at a comparable pace, and the cost of wind turbines has dropped steadily too, albeit at a slower rate.

Not all technologies follow this course, however. Fossil fuels cost roughly what they did a century ago, adjusted for inflation, and nuclear power is no cheaper than it was in 1958. (In fact, partly due to heightened safety concerns, it's somewhat more expensive.)

The global deployment of technologies follows another pattern, called an S curve, increasing exponentially at first and then leveling out. Careful analysis of the spread of many technologies, from canals to the internet, makes it possible to predict the pace of technological adoption. When a technology is new, predictions are difficult, but as it develops, they get easier. Applying these ideas to the energy transition indicates that key technologies such as solar, wind, batteries and green-hydrogen-based fuels are likely to grow rapidly, dominating the energy system within the next two decades. And they will continue to get cheaper and cheaper, making energy far more affordable than it has ever been. This will happen in electricity generation first and then in sectors that are harder to decarbonize, including aviation and long-range shipping.
And in addition, "The future savings more than offset present investments to the extent that the transition would make sense from a purely economic standpoint even if we weren't worried about climate change.

"The sooner we make investments and adopt policies that enable the transition, the sooner we will realize the long-term savings."

Past studies have suggested a major ocean current could collapse, quickly changing temperatures and climate patterns, reports the Washington Post.

"But scientists disagree on whether the the Atlantic Meridional Overturning Circulation (AMOC) is already slowing, and questions remain as to whether a variety of proxy measurements actually indicate a slowdown" — including a new analysis arguing that the current "has remained remarkably stable." One way to detect AMOC weakening is to monitor the strength of its components such as the Florida Current, which flows swiftly from the Gulf of Mexico into the North Atlantic. The current is a "major contributor" to the AMOC, the researchers write, and a slowdown of the current might indicate a slowdown of the AMOC. Scientists have been tracking its strength since the 1980s using a submarine cable that measures the volume of water it transports.

In the current study, researchers reconsider the data, correcting for a gradual shift in Earth's magnetic field that they say affected the cable measurements. Previous assessments of the uncorrected data showed a slight slowing in the Florida Current. But when they corrected for the shift in Earth's magnetic field, the researchers write, they found that the current "has remained remarkably stable" and not declined significantly over the past 40 years.
The researchers' announcement acknowledges that "It is possible that the AMOC is changing without a corresponding change in the Florida Current..."

How were the Pyramids built? NBC News reported on "a possible answer" after new evidence was published earlier this year in the journal Communications Earth & Environment.

The theory? "[A]n extinct branch of the Nile River once weaved through the landscape in a much wetter climate." Dozens of Egyptian pyramids across a 40-mile-long range rimmed the waterway, the study says, including the best-known complex in Giza. The waterway allowed workers to transport stone and other materials to build the monuments, according to the study. Raised causeways stretched out horizontally, connecting the pyramids to river ports along the Nile's bank.

Drought, in combination with seismic activity that tilted the landscape, most likely caused the river to dry up over time and ultimately fill with silt, removing most traces of it.

The research team based its conclusions on data from satellites that send radar waves to penetrate the Earth's surface and detect hidden features. It also relied on sediment cores and maps from 1911 to uncover and trace the imprint of the ancient waterway. Such tools are helping environmental scientists map the ancient Nile, which is now covered by desert sand and agricultural fields... The study builds on research from 2022, which used ancient evidence of pollen grains from marsh species to suggest that a waterway once cut through the present-day desert.
Granite blocks weighing several tons were transported hundreds of miles, according to a professor of Egyptology at Harvard University — who tells NBC they were moved without wheels. But this new evidence that the Nile was closer to the pyramids lends further support to the evolving "canals" theory.

In 2011 archaeologist Pierre Tallet found 30 different man-made caves in remote Egyptian hills, according to Smithsonian magazine. eventually locating the oldest papyrus rolls ever discovered — which were written by the builders of the Great Pyramid of Giza, describing a team of 200 workers moving limestone upriver. And in a 2017 documentary archaeologists were already reporting evidence of a waterway underneath the great Giza plateau.

Slashdot reader Smonster found an alternate theory in this 2001 announcement from Caltech: Mory Gharib and his team raised a 6,900-pound, 15-foot obelisk into vertical position in the desert near Palmdale by using nothing more than a kite, a pulley system, and a support frame... One might ask whether there was and is sufficient wind in Egypt for a kite or a drag chute to fly. The answer is that steady winds of up to 30 miles-per-hour are not unusual in the areas where the pyramids and obelisks are found.
"We're not Egyptologists," Gharib added. "We're mainly interested in determining whether there is a possibility that the Egyptians were aware of wind power, and whether they used it to make their lives better."

Ars Technica reports NASA officials operating the International Space Station "are seriously concerned about a small Russian part of the station" — because it's leaking.

The "PrK" tunnel connecting a larger module to a docking port "has been leaking since September 2019... In February of this year NASA identified an increase in the leak rate from less than 1 pound of atmosphere a day to 2.4 pounds a day, and in April this rate increased to 3.7 pounds a day." A new report, published Thursday by NASA's inspector general, provides details not previously released by the space agency that underline the severity of the problem...

Despite years of investigation, neither Russian nor US officials have identified the underlying cause of the leak. "Although the root cause of the leak remains unknown, both agencies have narrowed their focus to internal and external welds," the report, signed by Deputy Inspector General George A. Scott, states. The plan to mitigate the risk is to keep the hatch on the Zvezda module leading to the PrK tunnel closed. Eventually, if the leak worsens further, this hatch might need to be closed permanently, reducing the number of Russian docking ports on the space station from four to three.

Publicly, NASA has sought to minimize concerns about the cracking issue because it remains, to date, confined to the PrK tunnel and has not spread to other parts of the station. Nevertheless, Ars reported in June that the cracking issue has reached the highest level of concern on the space agency's 5x5 "risk matrix" to classify the likelihood and consequence of risks to spaceflight activities. The Russian leaks are now classified as a "5" both in terms of high likelihood and high consequence.
"According to NASA, Roscosmos is confident they will be able to monitor and close the hatch to the Service Module prior to the leak rate reaching an untenable level. However, NASA and Roscosmos have not reached an agreement on the point at which the leak rate is untenable."

The article adds that the Space Station should reach its end of life by either 2028 or 2030, and NASA "intends to transition its activities in low-Earth orbit onto private space stations," and has funded Axiom Space, Blue Origin, and Voyager Space for initial development.

"There is general uncertainty as to whether any of the private space station operators will be ready in 2030."

Researchers propose a "deceptively simple" way to sequester carbon, reports the Washington Post: burying wood underground: Forests are Earth's lungs, sucking up six times more carbon dioxide (CO2) than the amount people pump into the atmosphere every year by burning coal and other fossil fuels. But much of that carbon quickly makes its way back into the air once insects, fungi and bacteria chew through leaves and other plant material. Even wood, the hardiest part of a tree, will succumb within a few decades to these decomposers. What if that decay could be delayed? Under the right conditions, tons of wood could be buried underground in wood vaults, locking in a portion of human-generated CO2 for potentially thousands of years.

While other carbon-capture technologies rely on expensive and energy-intensive machines to extract CO2, the tools for putting wood underground are simple: a tractor and a backhoe.

Finding the right conditions to impede decomposition over millennia is the tough part. To test the idea, [Ning Zeng, a University of Maryland climate scientist] worked with colleagues in Quebec to entomb wood under clay soil on a crop field about 30 miles east of Montreal... But when the scientists went digging in 2013, they uncovered something unexpected: A piece of wood already buried about 6½ feet underground. The craggy, waterlogged piece of eastern red cedar appeared remarkably well preserved. "I remember standing there looking at other people, thinking, 'Do we really need to continue this experiment?'" Zeng recalled. "Because here's the evidence...."

Radiocarbon dating revealed the log to be 3,775 years old, give or take a few decades. Comparing the old chunk of wood to a freshly cut piece of cedar showed the ancient log lost less than 5 percent of its carbon over the millennia. The log was surrounded by stagnant, oxygen-deprived groundwater and covered by an impermeable layer of clay, preventing fungi and insects from consuming the wood. Lignin, a tough material that gives trees their strength, protected the wood's carbohydrates from subterranean bacteria...

The researchers estimate buried wood can sequester up 10 billion tons of CO2 per year, which is more than a quarter of annual global emissions from energy, according to the International Energy Agency.

The European Space Agency (ESA) plans to launch a satellite into Earth's orbit in 2027 to watch it get wrecked as it reenters the atmosphere. From a report: The project is intended to help understand how exactly satellites break apart so that scientists can learn how to prevent the creation of more space debris. Space junk is becoming a bigger problem as we send more satellites into orbit, but there are efforts to try and address it. This mission is part of the ESA's Zero Debris Charter initiative to stop the creation of additional space debris by 2030. The mission is called the Destructive Reentry Assessment Container Object (DRACO), and the insides of the satellite will collect data as the craft gets destroyed during reentry into the atmosphere. It will also contain a 40-centimeter capsule designed to survive the destruction that will transmit the collected data as the capsule moves toward the ocean.

Hot on the heels of United Airlines' Starlink announcement, Hawaiian Airlines said it, too, is offering "fast and free Starlink Wi-Fi" across its entire Airbus fleet. CNET reports: Hawaiian Airlines is now the first major carrier to use Elon Musk's satellite internet service, which taps more than 7,000 satellites in low earth orbit to deliver high-speed internet worldwide. "In Starlink's low earth orbit constellation of advanced satellites, the latest of which utilize a revolutionary laser mesh network, we found an ideal solution to ensure reliable, high-speed, low-latency Wi-Fi on transpacific flights," a Hawaiian Airlines representative told CNET. "Working with Starlink has allowed us to offer a fast and consistent in-flight connectivity experience that meets our high standard for guest service."

The company first debuted Starlink on its planes in February on a flight from Honolulu to Long Beach, California. It first struck a deal with Starlink in 2022 and has now completed installation across its entire Airbus fleet, which includes 24 A330 planes and 18 A321neos. Hawaiian Airlines will also deploy the service on its two Boeing 787-9 planes, but not its Boeing 717 aircraft, which are used on shorter flights between the Hawaiian Islands.

An anonymous reader quotes a report from 404 Media: After a horseback riding accident left him paralyzed from the waist down in 2009, former jockey Michael Straight learned to walk again with the help of a $100,000 ReWalk Personal exoskeleton. Earlier this month, that exoskeleton broke because of a malfunctioning piece of wiring in an accompanying watch that makes the exoskeleton work. The manufacturer refused to fix it, saying the machine was now too old to be serviced, and Straight once again couldn't walk anymore. "After 371,091 steps my exoskeleton is being retired after 10 years of unbelievable physical therapy," Straight posted on Facebook on September 16. "The reasons [sic] why it has stopped is a pathetic excuse for a bad company to try and make more money. The reason it stopped is because of a battery in the watch I wear to operate the machine. I called thinking it was no big deal, yet I was told they stopped working on any machine that was 5 years or older. I find it very hard to believe after paying nearly $100,000 for the machine and training that a $20 battery for the watch is the reason I can't walk anymore?"

Straight's experience is a nightmare scenario that highlights what happens when companies decide to stop supporting their products and do not actively support independent repair. It's also what happens without the protection of right to repair legislation that requires manufacturers to make repair parts, guides, and tools available to the general public. Specifically, a connection wire became desoldered from the battery in a watch that connects to the exoskeleton: "It's not the actual battery, but it's the little green connection piece we need to be the right fit and that's been our problem," Straight posted on Facebook. Straight's personal exoskeleton was broken for two months, he said in a video on Facebook. He was eventually able to get the device fixed after attention from an article in the Paulick Report, a website about the horse industry, and a spot on local TV. "It took me two months, and I got no results," he said in the video. With social media and news attention, "it only took you all four days, and look at the results," he said earlier this week while standing in the exoskeleton. "This is the dystopian nightmare that we've kind of entered in, where the manufacturer perspective on products is that their responsibility completely ends when it hands it over to a customer. That's not good enough for a device like this, but it's also the same thing we see up and down with every single product," Nathan Proctor, head of citizen rights group US PIRG's right to repair project told 404 Media. "People need to be able to fix things, there needs to be a plan in place. A $100,000 product you can only use as long as the battery lasts, that's enraging. We should not have to tolerate a society where this happens."

"We have all this technology we release into the wild and it changes people's lives, but there's no long-term thinking. Manufacturers currently have no legal obligation to support the equipment indefinitely and there's no requirements that they publish sufficient documentation to allow others to do it," Proctor said. "We need to set minimum standards for documentation so that, even if a company goes bankrupt or falls off the face of the earth, a technician with sufficient knowledge can fix it."

An anonymous reader shares a report: In the decade-long fight to control CRISPR, the super-tool for modifying DNA, it's been common for lawyers to try to overturn patents held by competitors by pointing out errors or inconsistencies. But now, in a surprise twist, the team that earned the Nobel Prize in chemistry for developing CRISPR is asking to cancel two of their own seminal patents, MIT Technology Review has learned.

The decision could affect who gets to collect the lucrative licensing fees on using the technology. The request to withdraw the pair of European patents, by lawyers for Nobelists Emmanuelle Charpentier and Jennifer Doudna, comes after a damaging August opinion from a European technical appeals board, which ruled that the duo's earliest patent filing didn't explain CRISPR well enough for other scientists to use it and doesn't count as a proper invention. The Nobel laureates' lawyers say the decision is so wrong and unfair that they have no choice but to preemptively cancel their patents, a scorched-earth tactic whose aim is to prevent the unfavorable legal finding from being recorded as the reason.

"The New York Times reports that astronomers have discovered a black hole spitting energy across 23 million light-years of intergalactic space (source paywalled; alternative source)," writes longtime Slashdot reader fahrbot-bot. From the report: Two jets, shooting in opposite directions, compose the biggest lightning bolt ever seen in the sky -- about 140 times as long as our own Milky Way galaxy is wide, and more than 10 times the distance from Earth to Andromeda, the nearest large spiral galaxy. Follow-up observations with optical telescopes traced the eruption to a galaxy 7.5 billion light-years away that existed when the universe was less than half its current age of 14 billion years. At the heart of that galaxy was a black hole spewing energy equivalent to the output of more than a trillion stars.

"The Milky Way would be a little dot in these two giant eruptions," said Martijn Oei, a postdoctoral researcher at the California Institute of Technology. Dr. Oei led the team that made the discovery, which was reported in Nature on Sept. 18 and announced on the journal's cover with an illustration reminiscent of a "Star Wars" poster. The astronomers have named the black hole Porphyrion, after a giant in Greek mythology -- a son of Gaia -- who fought the gods and lost. The discovery raises new questions of how such black holes could affect the evolution and structure of the universe.

New research suggests that Mars' missing atmosphere may have been absorbed by minerals in the planet's clays, in a process similar to geological reactions on Earth. It may explain Mars' loss of its atmosphere and potential to support life, with methane possibly still present and usable as an energy source. Longtime Slashdot reader Baron_Yam writes: Conditions on early Mars were highly likely to have had CO2 carried down into the ground by water, where reactions with rock resulted in iron oxide (and Mars' rust-red surface) and released hydrogen, which in turn reacted with the water to form methane that was bound in smectite clays. It's all still there, just under the surface. The research has been published in the journal Science Advances.

Scientists have proposed a method to deflect dangerous asteroids using nuclear explosions, not by directly blowing them up, but by detonating a bomb above the surface to create an X-ray burst that vaporizes part of the asteroid and changes its course. Experiments using the Z machine at Sandia National Laboratories simulated this process, showing that it could potentially redirect even large asteroids to prevent catastrophic impacts on Earth. Space.com reports: In a new study, the researchers employed the Z machine at Sandia National Laboratory, the most powerful laboratory source of radiation in the world. It generates powerful electric pulses, magnetic fields and X-rays to find out how materials react under high pressures and temperatures. "At present, there is only one way to generate an intense enough X-ray burst to do an experiment like this, and that's using the Z Machine," said [Nathan Moore, a physicist at Sandia National Laboratories in Albuquerque, N.M.]. The scientists used electrical pulses from the Z machine to generate powerful magnetic fields. These in turn compressed argon gas to generate plasma, the same form of matter that makes up lightning and stars. This argon plasma produced the X-ray burst the researchers needed to simulate a similar one from a nuclear explosion.

"You have to concentrate a lot of power, about 80 trillion watts, into a very small space, the size of a pencil lead, and very quickly, about 100 billionths of second, to generate a hot enough argon plasma, several millions of degrees, to make a powerful enough X-ray burst to heat the asteroid material surface to tens of thousands of degrees to give it enough push," Moore said. The scientists hung up a pair of targets in a vacuum, each 0.47 inches (12 millimeters) wide -- one made of quartz, the other of fused silica. These materials are similar in composition to known asteroids. Previous attempts to study various asteroid deflection strategies all held targets fixed in place, "which wasn't very realistic," Moore said. "After all, asteroids in outer space aren't attached to anything. Besides, how would a mock asteroid accelerate realistically if it was anchored down?"

To overcome this problem, the researchers devised what they called "X-ray scissors." They hung the targets up using thin metal foil just 13 microns thick, or about one-eighth the thickness of an average human hair. This foil vaporized when the X-rays hit it, freeing the targets to accelerate naturally in space. The X-ray pulses generated vapor plumes from each target and accelerated each one to about 155 mph (250 km/h), matching computational predictions. "The ability to deflect miniature asteroids in a laboratory using the Z Machine is unlike anything else you can do anywhere else on Earth," Moore said. Scaling these findings up to a 2.5-mile-wide (4 kilometer) asteroid, with a 1 megaton nuclear bomb exploding about 1.25 miles (2 km) from its surface, the researchers suggested the resulting push could help deflect dangerous asteroids away from Earth.

"For reference, a 4-km [2.5-mile] asteroid is predicted to be large enough to cause global devastation and possible disruption of civilization, according to the NASA Planetary Defense Strategy and Action Plan," Moore said. Moore noted that asteroids come in a variety of compositions. "This new technique can be used to investigate the deflection response of different asteroid materials," he said. "Understanding how different asteroid materials vaporize and deflect will be critical for preparing for a planetary defense mission, should the need arise." The study has been published in the journal Nature Physics.

silverjacket writes: A feature for The New Yorker describes a plan to use robots to mine lunar materials and build a radio telescope on the far side of the moon that will help answer questions about the early universe. An excerpt from the story: he dream of a lunar telescope dates to the nineteen-sixties. The moon has the advantage of being hundreds of thousands of miles away from earthly electronics; on the far side of the moon, in particular, there's virtually no noise from human technology or the Earth's magnetosphere. After the Apollo landings, however, interest in the moon waned. Jack Burns, an astrophysicist who is now at the University of Colorado Boulder, has been advocating for a moon-based telescope since 1984. "I never, never would have guessed that it would take this long," he told me. "I just won't accept no for an answer." Today, Burns is the chief scientist of FarView, as well as the primary investigator of a sort of mini-FarView: FARSIDE, which would have one or two hundred antennas instead of a hundred thousand.

If FarView is built, it would be able to detect some of the oldest light in existence. The universe began 13.8 billion years ago as a dense, fast-expanding soup of matter and energy; around three hundred and eighty thousand years later, it had cooled enough for hydrogen atoms to hold together. After that came the Cosmic Dark Ages: millions of years without stars or galaxies, a period we know very little about. But hydrogen occasionally releases light with a wavelength of twenty-one centimetres -- radio waves. Some of that light is still around.

Because twenty-one-centimetre radiation is stretched by the steady expansion of the universe -- it's now tens to hundreds of metres long -- scientists can figure out how old it is, and how far away. (The longer the wavelength, the older the light and the more distant its source.) This means that if scientists can build a radio telescope on the moon, they will be able to create a three-dimensional picture of the early universe.

An anonymous reader shares a report: The Pacific country of Kiribati might be surrounded by water, but on land its population is running dry. The ocean around them is steadily encroaching, contaminating underground wells and leeching salt into the soil. "Our waters have been infected," climate activist and law student Christine Tekanene says. "Those who are affected, they now can't survive with the water that changed after sea level rise." The freshwater crisis is just one of the many threats driven by rising seas in Kiribati. Its people live on a series of atolls, peaking barely a couple of metres above a sprawling tract of the Pacific Ocean. As global temperatures rise and ice sheets melt, Kiribati -- and other low-lying nations like it -- are experiencing extreme and regular flooding, frequent coastal erosion and persistent food and water insecurity.

This week the United Nations general assembly will hold a high-level meeting to address the existential threats posed by sea level rise as the issue climbs the international agenda; last year the UN security council debated it for the first time. Wednesday's meeting aims to build political consensus on action to address the widespread social, economic and legal consequences of rising seas. Samoa's UN representative, Fatumanava Dr Pa'olelei Luteru, says the upcoming UN meeting is long overdue and "extremely important" for island nations. "Economically, militarily, we're not powerful," says Luteru, who also serves as the current chair of the Alliance of Small Island States (AOSIS). "At least within the context of the UN and the multilateral system we have the possibility and the opportunity to engage and achieve some of the things that are a priority for us."

WordPress hosting service WP Engine on Monday sent a cease-and-desist letter to Automattic after the latter's CEO Matt Mullenweg called WP Engine a "cancer to WordPress" last week. From a report: The notice asks Automattic and Mullenweg to retract their comments and stop making statements against the company. WP Engine, which (like Automattic itself) commercializes the open-source WordPress project, also accused Mullenweg of threatening WP Engine before the WordCamp summit held last week. "Automattic's CEO Matthew Mullenweg threatened that if WP Engine did not agree to pay Automattic -- his for-profit entity -- a very large sum of money before his September 20th keynote address at the WordCamp US Convention, he was going to embark on a self-described 'scorched earth nuclear approach' toward WP Engine within the WordPress community and beyond, the letter read. "When his outrageous financial demands were not met, Mr. Mullenweg carried out his threats by making repeated false claims disparaging WP Engine to its employees, its customers, and the world," the letter added.

Google is getting ready to show off updated Street View imagery in nearly 80 countries. The Verge: In a now-removed blog post seen by The Verge, Google announced that the new images are coming to countries like Australia, Brazil, Denmark, Japan, the Philippines, Rwanda, Serbia, South Africa, and more. Google is also bringing Street View to a handful of countries where it's never been available, including Bosnia, Namibia, Lichtenstein, and Paraguay. The company said its more portable Street View camera, which launched in 2022, will help offer images of "even more places in the future."

Google Maps and Google Earth are getting sharper satellite imagery as well, thanks to the company's cloud-removal AI tool that takes out clouds, shadows, haze, and mist. This should result in "brighter, more vibrant" images, according to Google.

An anonymous reader quotes a report from the New York Times: Paper or paper? In California, shoppers will have only one bag option at the checkout line starting in 2026. A decade ago, California became the first U.S. state to ban single-use plastic bags, the flimsy sacks that regularly blew into waterways, littered streets and collected in landfills. The prohibition, in the nation's most populous state, was considered a turning point in the effort to reduce plastic waste. But the move backfired in a way that few supporters expected. Californians in 2021 actually tossed nearly 50 percent more plastic bags, by weight, than when the law first passed in 2014, according to data from CalRecycle, California's recycling agency. A loophole in the initial ban allowed retailers to provide thick-walled plastic bags and charge 10 cents a piece for them. Though technically reusable and recyclable, the heavier-duty sacks still ended up in many trash cans after a shopping trip.

Gov. Gavin Newsom signed legislation on Sunday banning the sale at grocery checkouts of all plastic bags (Warning: source may be paywalled; alternative source), regardless of thickness. The only option for customers who lack their own reusable shopping bags will be buying paper bags for 10 cents each. "We deserve a cleaner future for our communities, our children and our earth," said Rebecca Bauer-Kahan, a Democratic assemblywoman and co-author of the bill, in a statement. "It's time for us to get rid of these plastic bags and continue to move forward with a more pollution-free environment." Plastic bags are typically used for 12 minutes before being discarded, according to the California Public Interest Research Group, a consumer advocacy group. But those bags live in oceans and landfills for hundreds of years, and can contaminate drinking water and food in the form of microplastics. SB 1053 will go into effect on January 1st, 2026. It also changes the definition of a "recycled paper bag," requiring all bags with that label to be made of at least 50% post-consumer recycled materials starting January 1st, 2028.

An anonymous reader quotes a report from CNN: California Attorney General Rob Bonta filed a lawsuit against ExxonMobil on Monday alleging the company carried out a "decades-long campaign of deception" in which the oil and gas giant misled the public on the merits of plastic recycling. The complaint accuses the company of using slick marketing and misleading public statements for half a century to claim recycling was an effective way to deal with plastic pollution, according to a press release from Bonta's office published Monday. It alleges the company continues to perpetuate the "myth" of recycling today. The case, filed in the San Francisco County Superior Court, seeks to compel ExxonMobil "to end its deceptive practices that threaten the environment and the public," the statement said.

Bonta is also asking the court to rule ExxonMobil must pay civil penalties, among other payments, for the harm inflicted by plastic pollution in California. "Plastics are everywhere, from the deepest parts of our oceans, the highest peaks on earth, and even in our bodies, causing irreversible damage -- in ways known and unknown -- to our environment and potentially our health," Bonta said. "For decades, ExxonMobil has been deceiving the public to convince us that plastic recycling could solve the plastic waste and pollution crisis when they clearly knew this wasn't possible. ExxonMobil lied to further its record-breaking profits at the expense of our planet and possibly jeopardizing our health," he said. [...]

Lawsuits against oil and gas companies for their role in climate change and air pollution are becoming more common, but Monday's is the first in the country to take on a fossil fuel company for its messaging around plastic recycling. The statement said that ExxonMobil "falsely promoted all plastic as recyclable, when in fact the vast majority of plastic products are not and likely cannot be recycled, either technically or economically." The lawsuit also alleges Exxon "continues to deceive the public by touting "advanced recycling" as the solution to the plastic waste and pollution crisis." Advanced -- or chemical -- recycling is a technology promoted by many oil companies, but which has been plagued by missed targets, closed or shelved plants and reports of fires and spills. [...] At the heart of the suit is the allegation ExxonMobil's messaging caused consumers to buy and use more single-use plastic than they otherwise would have. In response to the lawsuit, ExxonMobil pointed the finger back at California, which it said has an ineffective recycling system that officials have known about for decades: "They failed to act, and now they seek to blame others. Instead of suing us, they could have worked with us to fix the problem and keep plastic out of landfills."

ExxonMobil contends chemical recycling does work. "We're bringing real solutions, recycling plastic waste that couldn't be recycled by traditional methods," the company said in a statement.

A copy of the Attorney General's complaint can be found here (PDF).

Industrial civilisation is close to breaching a seventh planetary boundary, and may already have crossed it, according to scientists who have compiled the latest report on the state of the world's life-support systems. From a report: "Ocean acidification is approaching a critical threshold," particularly in higher-latitude regions, says the latest report on planetary boundaries. "The growing acidification poses an increasing threat to marine ecosystems." The report, from the Potsdam Institute for Climate Impact Research (PIK), builds on years of research showing there are nine systems and processes -- the planetary boundaries -- that contribute to the stability of the planet's life-support functions.

Thresholds beyond which they can no longer properly function have already been breached in six. Climate change, the introduction of novel entities, change in biosphere integrity and modification of biogeochemical flows are judged to be in high-risk zones, while planetary boundaries are also transgressed in land system change and freshwater change but to a lesser extent. All have worsened, according to the data. Stratospheric ozone depletion has remained stable, however, and there has been a slight improvement in atmospheric aerosol loading, the research says. At a briefing outlining the findings, Levke Caesar, a climate physicist at PIK and co-author of the report, said there were two reasons the levels of ocean acidification were concerning.