AmiMoJo writes: The climate-damaging vapors left behind by jet planes could be easily tackled, aviation experts say, with a new study suggesting they could be eliminated for a few pounds per flight. Jet condensation trails, or contrails, have spawned wild conspiracy theories alleging mind control and the spreading of disease, but scientists say the real problem is their warming effect.

"They create an artificial layer of clouds, which traps the heat from the Earth that's trying to escape to outer space," said Carlos Lopez de la Osa, from the Transport & Environment campaign group, which has carried out a new study on the solutions to contrails. "The scale of the warming that's associated with them is roughly having a similar impact to that of aviation carbon emissions."

Tweaking the flight paths of a handful of aircraft could reduce contrail warming by more than half by 2040, at a cost of less than $5.1 per flight. Geography and a flight's latitude have a strong influence on whether a contrail is warming. Time of day also influences the climate effects of contrails. Those formed by evening and night flights have the largest warming contribution. Seasonality is also important -- the most warming contrails tend to occur in winter. "Planes are already flying around thunderstorms and turbulence areas," Mr Lopez de la Osa said. "We will need to add one more constraint to flight planning, which is avoiding areas of contrail formation."

Pakistan's Punjab province banned most outdoor activities and ordered shops, markets and malls in some areas to close early from Monday to curb illnesses caused by intense air pollution. From a report: The province has closed educational institutions and public spaces like parks and zoos until Nov. 17 in places including Lahore, the world's most polluted city in terms of air quality, according to Swiss group IQAir's live ratings.

The districts of Lahore, Multan, Faisalabad and Gujranwala have seen an unprecedented rise in patients with respiratory diseases, eye and throat irritation, and pink eye disease, the Punjab government said in an order issued late on Sunday. The new restrictions will also remain in force until Nov. 17. "The spread of conjunctivitis/ pink eye disease due to bacterial or viral infection, smoke, dust or chemical exposure is posing a serious and imminent threat to public health," the Punjab government said.

While outdoor activities including sports events, exhibitions and festivals, and dining at restaurants have been prohibited, "unavoidable religious rites" are exempt from this direction, the order said. Outlets like pharmacies, oil depots, dairy shops and fruit and vegetable shops have similarly been exempted from the directions to close by 8 p.m. local time. Lahore's air quality remained hazardous on Monday, with an index score of more than 600, according to IQAir, but this was significantly lower than the 1,900 that it touched in places earlier this month. A score of 0-50 is considered good.

SpaceX plans an ambitious in-orbit refueling test between two Starships in March 2025. "The orbital demonstration is a major step for Starship, and a crucial part of SpaceX's capability of delivering NASA's Artemis mission to the Moon," reports Gizmodo. The plans were unveiled during Spaceflight Now's recent interview (source: YouTube) with Kent Chojnacki, the deputy manager for NASA's Human Landing System program. Gizmodo reports: SpaceX is under a $53.2 million contract with NASA, signed in 2020, to use Starship tankers for in-orbit propellant transfer. During its third test flight, SpaceX transferred around 10 metric tons of liquid oxygen from Starship's header tank to its main tank while it was in space. The upcoming demonstration, however, requires a lot more of the launch vehicle. Two Starships will launch to low Earth orbit around three to four weeks apart, the spacecraft will meet and dock in orbit, and one will transfer propellant to another. After the demonstration, the two Starships will undock from one another and deorbit.

"Once you've done that, you've really cracked open the opportunity to move massive amounts of payload and cargo outside of the Earth's sphere," Chojnacki said during the interview. The in-flight propellant transfer tests are set to conclude in the summer. With in-flight refueling, NASA is aiming to develop technologies to "enable long-term cryogenic fluid management, which is essential for establishing a sustainable presence on the Moon and enabling crewed missions to Mars," the space agency stated when the contract was signed.

SpaceX is developing a version of Starship to land humans on the Moon in September 2026 as part of NASA's Artemis 3 mission. To prepare for the Moon mission, SpaceX is expected to launch between eight and 16 propellant tanker Starships into low Earth orbit in rapid succession. Each of the tankers will carry around 100 to 150 tons of liquid oxygen and liquid methane and will dock with a larger fuel depot. The orbiting depot will then connect with the Human Landing System Starship, filling its massive 1,200-ton fuel tanks. Once refueled, the Starship lander will continue its journey toward the Moon.

An anonymous reader quotes a report from TechCrunch: A trend has emerged among a small group of climate tech founders who start with their eyes fixed on space and soon realize their technology would do a lot more good here on Earth. Halen Mattison and Luke Neise fit the bill. Mattison spent time at SpaceX, while Neise worked at Vanderbilt Aerospace Design Laboratory and Varda Space Industries. The pair originally wanted to sell reactors to SpaceX that could turn carbon dioxide into methane for use on Mars. Today, they're building them to replace natural gas that's pumped from underground. Their company, General Galactic, which emerged from stealth in April, has built a pilot system that can produce 2,000 liters of methane per day. Neise, General Galactic's CTO, told TechCrunch that he expects that figure to rise as the company replaces off-the-shelf components with versions designed in-house.

"We think that's a big missing piece in the energy mix right now," said Mattison, the startup's CEO. "Being able to own our supply chains, to be able to fully control all of the parameters, to challenge the requirements between components, all of that unlocks some real elegance in the engineering solution." At commercial scale, the company's reactors will be assembled using mass production techniques. It's a contrast to how most petrochemical and energy facilities are built today. General Galactic is focused on producing methane. However, Mattison said the company isn't necessarily looking to displace the fuel from heating and energy. "Those are generally going toward electrification," he said. Instead, it intends to sell its methane to companies that use it as an ingredient or to power a process, like in chemical or plastic manufacturing. The company isn't ruling out transportation entirely either. Mattison hinted that General Galactic is working on other hydrocarbons that could be used for transportation, like jet fuel. "Stay tuned," he said. General Galactic plans to deploy its first modules next year. The startup "hopes its modules will be able to plug into existing infrastructure, speeding its adoption relative to other fuels like hydrogen," notes TechCrunch.

The year 2024 is on track to be the warmest year on record after an extended streak of exceptionally high monthly global mean temperatures, the World Meteorological Organisation (WMO) has announced.

When a volcano erupted in 1980 about 70 miles from Portland, "lava incinerated anything living for miles around," remembers an announcement from the University of California at Riverside. But "As an experiment, scientists later dropped gophers onto parts of the scorched mountain for only 24 hours.

"The benefits from that single day were undeniable — and still visible 40 years later." Once the blistering blast of ash and debris cooled, scientists theorized that, by digging up beneficial bacteria and fungi, gophers might be able to help regenerate lost plant and animal life on the mountain. Two years after the eruption, they tested this theory. "They're often considered pests, but we thought they would take old soil, move it to the surface, and that would be where recovery would occur," said UC Riverside microbiologist Michael Allen.

They were right. But the scientists did not expect the benefits of this experiment would still be visible in the soil today, in 2024. A paper out this week in the journal Frontiers in Microbiomes details an enduring change in the communities of fungi and bacteria where gophers had been, versus nearby land where they were never introduced. "In the 1980s, we were just testing the short-term reaction," said Allen. "Who would have predicted you could toss a gopher in for a day and see a residual effect 40 years later?"

In 1983, Allen and Utah State University's James McMahon helicoptered to an area where the lava had turned the land into collapsing slabs of porous pumice. At that time, there were only about a dozen plants that had learned to live on these slabs. A few seeds had been dropped by birds, but the resulting seedlings struggled. After scientists dropped a few local gophers on two pumice plots for a day, the land exploded again with new life. Six years post-experiment, there were 40,000 plants thriving on the gopher plots. The untouched land remained mostly barren.
All this was possible because of what isn't always visible to the naked eye. Mycorrhizal fungi penetrate into plant root cells to exchange nutrients and resources. They can help protect plants from pathogens in the soil, and critically, by providing nutrients in barren places, they help plants establish themselves and survive.
Mycorrhizal fungi also helped an old-growth forest survive, accoridng to the researchers — even after volcano ash had caused them to drop their needles...

NASA hopes to stimulate in-space manufacturing through a multi-year "laser beam welding collaboration" with Ohio State University. The project "seeks to understand the physical processes of welding on the lunar surface," according to NASA.gov, "such as investigating the effects of laser beam welding in a combined vacuum and reduced gravity environment." The goal is to increase the capabilities of manufacturing in space to potentially assemble large structures or make repairs on the Moon, which will inform humanity's next giant leap of sending astronauts to Mars and beyond. "For a long time, we've used fasteners, rivets, or other mechanical means to keep structures that we assemble together in space," said Andrew O'Connor, a Marshall materials scientist who is helping coordinate the collaborative effort and is NASA's technical lead for the project. "But we're starting to realize that if we really want strong joints and if we want structures to stay together when assembled on the lunar surface, we may need in-space welding."

The ability to weld structures in space would also eliminate the need to transport rivets and other materials, reducing payloads for space travel. That means learning how welds will perform in space. To turn the effort into reality, researchers are gathering data on welding under simulated space conditions, such as temperature and heat transfer in a vacuum; the size and shape of the molten area under a laser beam; how the weld cross-section looks after it solidifies; and how mechanical properties change for welds performed in environmental conditions mimicking the lunar surface. "Once you leave Earth, it becomes more difficult to test how the weld performs, so we are leveraging both experiments and computer modeling to predict welding in space while we're still on the ground," said O'Connor.

In August 2024, a joint team from Ohio State's Welding Engineering and Multidisciplinary Capstone Programs and Marshall's Materials & Processes Laboratory performed high-powered fiber laser beam welding aboard a commercial aircraft that simulated reduced gravity. The aircraft performed parabolic flight maneuvers that began in level flight, pulled up to add 8,000 feet in altitude, and pushed over at the top of a parabolic arc, resulting in approximately 20 seconds of reduced gravity to the passengers and experiments. While floating in this weightless environment, team members performed laser welding experiments in a simulated environment similar to that of both low Earth orbit and lunar gravity. Analysis of data collected by a network of sensors during the tests will help researchers understand the effects of space environments on the welding process and welded material.
They performed that laser-beam welding in a vacuum chamber during the parabolic flight (on a Boeing 727), according to the article — and successfully completed 69 out of 70 welds in microgravity and lunar gravity conditions. "The last time NASA performed welding in space was during the Skylab mission in 1973...

"Practical welding and joining methods and allied processes, including additive manufacturing, will be required to develop the in-space economy."

Though it breaks down faster than CO2, methane is a greenhouse gas over 80 times as potent as carbon dioxide, reports the Washington Post. It suddenly started increasing in the atmosphere in 2007 — and then in 2020, its growth rate doubled.

While scientists have suspected it was natural gas, some researchers have a new theory... "The changes that we saw in the last couple of years — and even since 2007 — are microbial," said Sylvia Michel, lead author of the paper published last month in the Proceedings of the National Academy of Sciences. "Wetlands, if they are getting warmer and wetter, maybe they're producing more methane than they used to...."

Michel and her co-authors analyzed samples of methane, or CH4, from 22 sites around the globe at a Colorado laboratory. Then they measured the "heaviness" of that methane — specifically, how many of the molecules had a heavier isotope of carbon in them, known as C13. Different sources of methane give off different carbon signatures. Methane produced by microbes — mostly single-celled organisms known as archaea, which live in cow stomachs, wetlands and agricultural fields — tends to be "lighter," or have fewer C13 atoms. Methane from fossil fuels, on the other hand, is heavier, with more C13 atoms. As the amount of methane has risen in the atmosphere over the past 15 years, it's also gotten lighter and lighter. The scientists used a model to analyze those changes and found that only large increases in microbial emissions could explain both the rising methane and its changing weight....

Researchers say it doesn't mean that the world can just keep burning natural gas. If wetlands are releasing methane faster than ever, they argue, there should be an even greater push to curb methane from the sources humans can control, such as cows, agriculture and fossil fuels.
The article includes this quote from Stanford University professor Rob Jackson (who works on the Global Methane Budget, a project tracking the world's methane sources). "You can turn a wrench in an oil and gas field to quench methane emissions," Jackson said. "There's no wrench for the Congo or the Amazon." Another recent study found that two-thirds of current methane emissions are caused by humans — from fossil fuels, rice cultivation, reservoirs and other sources. "Methane forms biologically in warm, wet, low-oxygen environments," Jackson said. "The wetlands of a rice paddy and the gut of the cow are all similar." But evidence is also emerging that natural wetlands may be responding to warming temperatures by pumping out more methane. Satellite data from recent years has shown global methane hot spots in the tropical wetlands of the Amazon and the Congo. "Wetlands will emit more methane as temperatures warm," Jackson said. "This may be the start of a reinforcing feedback, that higher temperatures release more methane from natural ecosystems...."

Over 100 countries have pledged to reduce their methane emissions by 30 percent by 2030, compared with 2020 levels — but so far, that pledge has yet to see results. Instead, satellite measurements show concentrations are rising at a rate that is in line with the worst-case climate scenarios.

The chief executive of Cop29 has been filmed apparently agreeing to facilitate fossil fuel deals at the climate summit. From a report: The recording has amplified calls by campaigners who want the fossil fuel industry and its lobbyists to be banned from future Cop talks. The campaign group Global Witness posed undercover as a fake oil and gas group asking for deals to be facilitated in exchange for sponsoring the event. In the calls, Elnur Soltanov, Azerbaijan's deputy energy minister and chief executive of Cop29, agreed to this and spoke of a future that includes fossil fuels "perhaps for ever." Cop officials also introduced the fake investor to a senior executive at the national oil and gas company Socar to discuss investment opportunities.

Soltanov told the fake investment group: âoeI would be happy to create a contact between your team and their team [Socar] so that they can start discussions." Shortly after that they received an email from Socar. The UN framework convention on climate change (UNFCCC), the UN body that oversees Cop, says officials should not use their roles "to seek private gain" and it expects them to act "without self-interest."

With October's initial temperature data in, 2024 will rank as the first calendar year in modern record-keeping in which global average surface temperatures exceed the Paris Agreement's aspirational 1.5C guardrail. From a report:Holding long-term warming to the 1.5-degree target compared to the preindustrial era is crucial for lowering the risk of triggering climate change tipping points, beyond which potentially catastrophic impacts have a higher likelihood of occurring, studies show. Holding warming to that target is viewed as necessary for small island states and other extremely vulnerable nations to avoid being wiped out by sea level rise, drought and other threats.

The data -- and proxy records such as tree rings and ice cores -- shows this year is likely to be the hottest in at least 125,000 years. Right now, the world is on track for as much as 3.1C (5.58F) of warming based on already pledged emissions cuts, assuming they are fulfilled. Copernicus Climate Change Service reported early Thursday that the year is headed for a temperature anomaly of more than 1.55C (2.79F) above preindustrial levels. Last year fell just shy of the 1.5C threshold relative to the 1850-1900 average.

Plastic pollution is changing the processes of the entire Earth system, exacerbating climate change, biodiversity loss, ocean acidification, and the use of freshwater and land, according to scientific analysis. From a report: Plastic must not be treated as a waste problem alone, the authors said, but as a product that poses harm to ecosystems and human health. The authors gave their warning in the days before final talks begin in South Korea to agree a legally binding global treaty to cut plastic pollution. Progress towards a treaty on plastic pollution has been hindered by a row over the need to include cuts to the $712bn plastic production industry in the treaty.

At the last talks in April, developed countries were accused of bowing to pressure from fossil fuel and industry lobbyists to steer clear of any reductions in production. The discussions in South Korea, which start on 25 November, mark a rare opportunity for countries to come to an agreement to tackle the global crisis of plastic pollution. In 2022 at least 506m tonnes of plastics were produced worldwide, but only 9% gets recycled globally. The rest is burned, landfilled or dumped where it can leach into the environment. Microplastics are now everywhere, from the top of Mount Everest to the Mariana Trench, the deepest point on earth.

The new study of plastic pollution examined the mounting evidence of the effects of plastics on the environment, health and human wellbeing. The authors are urging delegates at the UN talks to stop viewing plastic pollution as merely a waste problem, and instead to tackle material flows through the whole life pathway of plastic, from raw material extraction, production and use, to its environmental release and its fate, and the Earth system effects.

Last December, Hyperloop One, the futuristic transportation company pursuing Elon Musk's dream of tube-based, airplane-speed travel, announced its shutdown. However, the concept itself has found a new lease on life in a scaled-down version overseas. According to The Verge's Andrew J. Hawkins, "The hyperloop, in fact, lives on -- as a 1/12th scale model in Switzerland." From the report: Sure, this isn't exactly the full realization of Musk's 2013 white paper, in which he theorized that aerodynamic aluminum capsules filled with passengers or cargo could be propelled through a nearly airless tube at speeds of up to 760mph. These tubes, either raised on pylons or sunk beneath the earth, could be built either within or between cities. Musk called it a "fifth mode of transportation" and argued it could help change the way we live, work, trade, and travel. The idea is being put to the test in Lausanne, Switzerland, where a 120-meter circular test track is being operated by a team that includes the Federal Institute of Technology Lausanne (EPFL), the School of Business and Engineering Vaud (HEIG-VD), and Swisspod Technologies. This week, the group announced that it had conducted "the longest" hyperloop test of its kind: traveling 11.8 km (7.3 miles) at a speed of 40.7km/h (25.3mph).

The circular test track has a circumference of 125.6 meters (412 feet) and a diameter of 40 centimeters (15.7 inches). It sounds modest, but the group claims that in a full-scale system, their test "directly translates" to a journey of 141.6 km (88 miles), which is about the distance between Geneva and Bern, or San Francisco to Sacramento, and speeds of up to 488.2 km/h (303.4mph). The project is called LIMITLESS, which stands for Linear Induction Motor Drive for Traction and Levitation in Sustainable Hyperloop Systems. During the test, the team "monitored the performance of vital subsystems," including propulsion, communication infrastructure, power electronics, and thermal management. They assessed "energy consumption, thrust variations, [linear induction motor] response, and control during acceleration, cruising, coasting, and braking scenarios."

Of course, a 1/12th-scale circular test track is hardly a sign that the hyperloop is alive and well. Most of the startups and companies pursuing a full-scale hyperloop have shut down, victims of financial mismanagement, as well as infrastructure and regulatory hurdles. Critics said that while the hyperloop may be technically feasible, it still only amounts to vaporware. It's been called a "utopian vision" that would be financially impossible to achieve. But the Swiss team is undeterred, promising to conduct a battery of future tests to further validate the system. Swisspod CEO Denis Tudor said the group plans to test its first freight product soon, and is currently building a larger test track in the US. "This is a key step toward making hyperloop for passengers a reality and changing how we connect, work, and live," he said.

SpaceX has launched the world's first wood-paneled satellite into space "to test the suitability of timber as a renewable building material in future exploration of destinations like the Moon and Mars," reports the BBC. From the report: Made by researchers in Japan, the tiny satellite weighing just 900g is heading for the International Space Station on a SpaceX mission. It will then be released into orbit above the Earth. Named LignoSat, after the Latin word for wood, its panels have been built from a type of magnolia tree, using a traditional technique without screws or glue. Researchers at Kyoto University who developed it hope it may be possible in the future to replace some metals used in space exploration with wood.

"Wood is more durable in space than on Earth because there's no water or oxygen that would rot or inflame it," Kyoto University forest science professor Koji Murata told Reuters news agency. "Early 1900s airplanes were made of wood," Prof Murata said. "A wooden satellite should be feasible, too." If trees could one day be planted on the Moon or Mars, wood might also provide material for colonies in space in the future, the researchers hope. Along with its wood panels, LignoSat also incorporates traditional aluminium structures and electronic components. It has sensors on board to monitor how its wood reacts to the extreme environment of space during the six months it will orbit the Earth. You can watch the launch on YouTube.

The degradation of the world's soils and landscapes is threatening human life, and must be addressed as a matter of urgency, the government of Saudi Arabia has said. The Guardian: Neglect of the land is wiping trillions of dollars from global economies, hampering agricultural production, disrupting water supplies, threatening children with poor nutrition, and destroying vital ecosystems, according to the country's deputy environment minister. Land degradation, and ways to combat the problem, will come into sharp focus at a global summit to be held in the nation's capital, Riyadh, in December.

The conference of the parties (Cop) to the UN convention on combating desertification (CCD), which takes place every two years, is often an overlooked international meeting, sparsely attended compared with the Cops on climate and on biodiversity. But as this year's host, Saudi Arabia is planning to put the issue of land management in the spotlight, inviting senior ministers and heads of government from around the world, in an attempt to bring in some financial muscle. In so doing, the country, often accused of obstructive behaviour at climate Cops, will offer an unusual glimpse of its own environmental priorities, in a world increasingly imperilled by global heating and related water shortages. Osama Faqeeha, deputy environment minister in the kingdom's government, said people should not be misled by the term desertification, which could appear a narrow concern limited to arid countries. In fact, the CCD should be understood to cover all of the globe's vulnerable lands, and efforts to rescue and protect them.

India's capital territory of Delhi is keen to use artificial rain to fight air pollution this year, its Environment Minister Gopal Rai said on Tuesday, as deteriorating air quality in the region led to an increase in respiratory illnesses. From a report: Large swathes of north India battle pollution each winter as cold air traps dust, vehicle emissions and smoke from farm fires in the breadbasket states of Punjab and Haryana, shrouding the national capital and its suburbs in a toxic haze. Cloud-seeding - the method of triggering rain by seeding clouds with salts - was considered to curb pollution in 2023 too but the plan did not materialise due to unfavourable weather conditions.

"I appeal to the federal environment minister...now in Delhi and north India, the pollution has reached the border of 400," Rai told reporters, referring to the air quality index (AQI) score on Tuesday. "The next 10 days are quite crucial...help us get permission for artificial rain, call a meeting," he said. About a third of Delhi's 39 monitoring stations showed a severe AQI score of more than 400 on Tuesday, a level which affects healthy people but is more serious for those fighting disease. An air quality score of zero to 50 is considered good.

An anonymous reader shares a report: As world leaders gathered in Colombia this week, they also watched for news from home, where many of the headlines carried the catastrophic consequences of ecological breakdown. Across the Amazon rainforest and Brazil's enormous wetlands, relentless fires had burned more than 22m hectares (55m acres). In Spain, the death toll in communities devastated by flooding passed 200. In the boreal forests that span Siberia, Scandinavia, Alaska and Canada, countries were recording alarming signs that their carbon sinks were collapsing under a combined weight of drought, tree death and logging. As Canada's wildfire season crept to a close, scientists calculated it was the second worst in two decades -- behind only last year's burn, which released more carbon than some of the world's largest emitting countries.

In global negotiations, climate and nature move along two independent tracks, and for years were broadly treated as distinct challenges. But as negotiations closed at the Cop16 biodiversity summit in Cali on Saturday, ministers from around the world underscored the crucial importance of nature to limiting damage from global heating, and vice versa -- emphasising that climate and biodiversity could no longer be treated as independent issues if either crisis was to be resolved. Countries agreed a text on links between the climate and nature, but failed to include language on a phase out of fossil fuels.

The UK environment secretary, Steve Reed, said that attending the summit in Colombia had brought home the links between climate and biodiversity. "One of the other things that's really struck me coming here and speaking to the Colombians in particular is how for them the nature crisis and the climate crisis are exactly the same thing. In the UK, perhaps more widely in the global north, we tend to talk a lot about climate and particularly net zero, and much less about nature -- perhaps because we're already more nature-depleted. But those two things connect entirely," he said. The Cop16 president, Susana Muhamad, Colombia's environment minister, has sought to put nature on a level with global efforts to decarbonise the world economy during the summit, warning that slashes to greenhouse gas emissions must be accompanied by the protection and restoration of the natural world if they are to be effective. Her presidency has repeatedly described nature and climate as "two sides of the same coin."

An anonymous reader shared this report from the Los Angeles Times: Los Angeles County has filed suit against the world's largest beverage companies — Coca-Cola and Pepsi — claiming the soda and drink makers lied to the public about the effectiveness of plastic recycling and, as a result, left county residents and ecosystems choking in discarded plastic... The Los Angeles County suit alleges — in a vein similar to that of [California attorney general] Bonta's suit against Exxon Mobil — that the global beverage companies misrepresented the environmental impact of their plastic bottles, "despite knowing that plastics cannot be readily disposed of without associated environmental impacts."

"Coke and Pepsi need to stop the deception and take responsibility for the plastic pollution problems" their products are causing, said Los Angeles County Board of Supervisors Chair Lindsey P. Horvath... Currently, just 9% of the world's plastics are recycled. The rest ends up being incinerated, sent to landfills, or discarded on the landscape, where they are often flushed into rivers or out to sea. At the same time, there is growing concern about the health and environmental consequences of microplastics — the bits of degraded plastic that slough off as the product ages, or is used, or washed. The tiny particles have been detected in every ecosystem on the planet that has been surveyed, as well as nearly every living organism examined... According to the county's statement, the two companies have consistently ranked as the world's "top plastic polluters...."

The beverage maker lawsuit was filed in Los Angeles Superior Court by County Counsel Dawyn R. Harrison on behalf of the people of the state of California... "The goal of this lawsuit is to stop the unfair and illegal conduct, to address the marketing practices that deceive consumers, and to force these businesses to change their practices to reduce the plastic pollution problem in the County and in California," Harrison said in a statement. "My office is committed to protecting the public from deceptive business practices and holding these companies accountable for their role in the plastic pollution crisis."

Long-time Slashdot reader schwit1 shared this story from SciTechDaily: New research confirms that subtle temperature differences at the ocean surface, known as the "ocean skin," increase carbon dioxide absorption. This discovery, based on precise measurements, suggests global oceans absorb 7% more CO2 than previously thought, aiding climate understanding and carbon assessments...

Until now, global estimates of air-sea CO2 fluxes typically ignore the importance of temperature differences in the near-surface layer... Dr Gavin Tilstone, from Plymouth Marine Laboratory (PML), said: "This discovery highlights the intricacy of the ocean's water column structure and how it can influence CO2 draw-down from the atmosphere. Understanding these subtle mechanisms is crucial as we continue to refine our climate models and predictions. It underscores the ocean's vital role in regulating the planet's carbon cycle and climate."

Somewhere off in interstellar space, 15.4 billion miles away from Earth, NASA's 47-year-old Voyager "recently went quiet," reports Mashable.

The probe "shut off its main radio transmitter for communicating with mission control..." Voyager's problem began on October 16, when flight controllers sent the robotic explorer a somewhat routine command to turn on a heater. Two days later, when NASA expected to receive a response from the spacecraft, the team learned something tripped Voyager's fault protection system, which turned off its X-band transmitter. By October 19, communication had altogether stopped.

The flight team was not optimistic. However, Voyager 1 was equipped with a backup that relies on a different, albeit significantly fainter, frequency. No one knew if the second radio transmitter could still work, given the aging spacecraft's extreme distance.

Days later, engineers with the Deep Space Network, a system of three enormous radio dish arrays on Earth, found the signal whispering back over the S-band transmitter. The device hadn't been used since 1981, according to NASA.

"The team is now working to gather information that will help them figure out what happened and return Voyager 1 to normal operations," NASA said in a recent mission update.
It's been more than 12 years since Voyager entered interstellar space, the article points out. And interstellar space "is a high-radiation environment that nothing human-made has ever flown in before.

"That means the only thing the teams running the old probes can count on are surprises."

"One technology critical to fighting climate change is lagging," reports the Washington Post, "thanks to a combination of high interest rates, rising costs, misinformation and the cycle of home construction. Adoption of heat pumps, one of the primary ways to cut emissions from buildings, has slowed in the United States and stalled in Europe, endangering the switch to clean energy.

"Heat pump investment in the United States has dropped by 4 percent in the past two years, even as sales of EVs have almost doubled, according to data from MIT and the Rhodium Group. In 13 European countries, heat pump sales dropped nearly in half in the first half of 2024, putting the European Union off-track for its climate goals." "Many many markets are falling," said Paul Kenny, the director general of the European Heat Pump Association. "It takes time to change people's minds about a heating system." Heat pumps — essentially air conditioners that can also work in reverse, heating a space as well as cooling it — are crucial to making buildings more climate-friendly. Around 60 percent of American homes are still heated with furnaces running on oil, natural gas, or even propane; to cut emissions from homes, all American houses and apartments will need to be powered by electricity...

In the United States, experts point to lags in construction, high interest rates, and general belt-tightening from inflation... [Cora Wyent, director of research for the electrification advocacy group Rewiring America] added, heat pumps are still growing as a share of overall heating systems, gaining ground on gas furnaces. In 2023, heat pumps made up 55 percent of all heating systems sold, while gas furnaces made up just 45 percent. "Heat pumps are continuing to increase their total market share," she said.

Homeowners may also run into trouble when trying to find contractors to install heat pumps. Barton James, the president and CEO of the Air Conditioning Contractors of America, says many contractors don't have training on how to properly install heat pumps; if they install them incorrectly, the ensuing problems can sour consumers on the technology... In the United States, low gas prices also make the economics of heat pumps more challenging. Gas is around three times cheaper than electricity — while heat pumps make up most of that ground with efficiency, they aren't the most cost-effective option for every household.
The Post also spoke to the manager for the carbon-free buildings team at the clean energy think tank RMI. They pointed out that heating systems need to be replaced roughly every 15 years — and the next cycle doesn't start until 2035.

The article concludes that "even with government policies and subsidies, many parts of the move to clean energy will require individual people to make changes to their lives. According to the International Energy Agency, the number of heat pumps will have to triple by 2030 to stay on track with climate goals. The only way to do that, experts say, is if incentives, personal beliefs, and technology all align."