Earth is finishing up its warmest year in the past 174 years, and very likely the past 125,000. From a report: Unyielding heat waves broiled Phoenix and Argentina. Wildfires raged across Canada. Flooding in Libya killed thousands. Wintertime ice cover in the dark seas around Antarctica was at unprecedented lows. This year's global temperatures did not just beat prior records. They left them in the dust. From June through November, the mercury spent month after month soaring off the charts. December's temperatures have largely remained above normal: Much of the Northeastern United States is expecting springlike conditions this week.

That is why scientists are already sifting through evidence -- from oceans, volcanic eruptions, even pollution from cargo ships -- to see whether this year might reveal something new about the climate and what we are doing to it. One hypothesis, perhaps the most troubling, is that the planet's warming is accelerating, that the effects of climate change are barreling our way more quickly than before. "What we're looking for, really, is a bunch of corroborating evidence that all points in the same direction," said Chris Smith, a climate scientist at the University of Leeds. "Then we're looking for causality. And that will be really interesting."

AstroForge, a private company, wants to mine a space rock, but it doesn't want the competition to find out which one. From a report: For generations, Western space missions have largely occurred out in the open. We knew where they were going, why they were going there and what they planned to do. But the world is on the verge of a new era in which private interests override such openness, with big money potentially on the line. Sometime in the coming year, a spacecraft from AstroForge, an American asteroid-mining firm, may be launched on a mission to a rocky object near Earth's orbit. If successful, it will be the first wholly commercial deep-space mission beyond the moon. AstroForge, however, is keeping its target asteroid secret.

The secret space-rock mission is the latest in an emerging trend that astronomers and other experts do not welcome: commercial space missions conducted covertly. Such missions highlight gaps in the regulation of spaceflight as well as concerns about whether exploring the cosmos will continue to benefit all humankind. "I'm very much not in favor of having stuff swirling around the inner solar system without anyone knowing where it is," said Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics in Massachusetts. "It seems like a bad precedent to set." But for AstroForge, the calculation is simple: If it reveals the destination, a competitor may grab the asteroid's valuable metals for itself. "Announcing which asteroid we are targeting opens up risk that another entity could seize that asteroid," said Matt Gialich, AstroForge's chief executive.

From the depths of the Amazon rainforest to the deserts of Antarctica, huge questions remain unanswered about life on Earth. The Guardian asked leading scientists and conservationists: what is the one thing you would like to know about the planet that remains a mystery? TLDR, the questions/wishes are:1. How many species are there on Earth?
2. I'd go back 540m years to see the 'biological big bang'
3. Could some of the smallest life forms help avert climate crisis?
4. What is the full biodiversity of the Amazon or Congo basin rainforests?
5. How do animals influence the functioning of Earth?
6. What will happen to the Gulf Stream?
7. Do universal rules govern how plants and animals evolve?
8. How many humans could Earth support?
9. Which species will adapt to the climate crisis -- and which will not?

The tiny Pacific island nation of Tuvalu is grappling with the imminent threats of climate change. Rising seas and increasing storms threaten the fragile coral atolls that are home to 11,000 people. A recent agreement allowing 280 Tuvaluans to migrate to Australia each year moved the nation closer to a managed retreat, but at that pace it would take decades to relocate everyone.

Tuvalu could be uninhabitable much sooner, according to projections. In parallel, the government is asserting it will maintain its statehood even without land. It also aims to digitally preserve Tuvalu's culture and history in the metaverse, as the physical place faces being drowned under rising waters. Tuvalu is strategizing for adaptation while also trying to drive global action on emissions reductions.

Hundreds of students from leading UK universities have launched a "career boycott" of Barclays over its climate policies, warning that the bank will miss out on top talent unless it stops financing fossil fuel companies. From a report: More than 220 students from Barclays' top recruitment universities, including Oxford, Cambridge, and University College London, have sent a letter to the high street lender, saying they will not work for Barclays and raising the alarm over its funding for oil and gas firms including Shell, TotalEnergies, Exxon and BP. "Your ambitious decarbonisation targets are discredited by your absence of action and the roster of fossil fuel companies on your books," the letter said. "You may say you're working with them to help them transition, but Shell, Total and BP have all rowed back."

Large oil firms have started to water down climate commitments, including BP, which originally pledged to lower emissions by 35% by 2030 but is now aiming for a 20% to 30% cut instead. Meanwhile, ExxonMobil quietly withdrew funding for plans to use algae to create low-carbon fuel, while Shell announced it would not increase its investments in renewable energy this year, despite earlier promises to slash its emissions. The letter calls on Barclays to end all financing and underwriting of oil and gas companies -- not only their projects -- and to boost funding of firms behind wind and solar energy significantly.

Joe Biden's administration last week announced a new proposal aimed at banning logging in old-growth forests, a move meant to protect millions of trees that play a key role in fighting the climate crisis. From a report: The proposal comes from an executive order signed by the president on Earth Day in 2022 that directed the US Forest Service and the land management bureau to conduct an inventory of old-growth and mature forest groves as well as to develop policies that protect them. "We think this will allow us to respond effectively and strategically to the biggest threats that face old growth," the US agriculture secretary, Tom Vilsack, told the Washington Post. "At the end of the day, it will protect not just the forests but also the culture and heritage connected to the forests."

The US Forest Service oversees 193m acres of forests and grasslands, 144m of which are forests. In its inventory conducted after Biden's executive order, the agency found that the vast majority of forests it oversees, about 80%, are either old-growth or mature forests. It found more than 32m acres of old-growth forests and 80m acres of mature forests on federal land. The land management bureau defines old-growth forests as those with trees that are in later stages of stand development, which typically means at least 120 years of growth, depending on species. The giant sequoias in California, for example, are old-growth trees. Mature forests, meanwhile, have trees that are in the development stage immediately before old growth.

After promising early dumps of snow in some areas of Europe this autumn, the pattern of recent years resumed and rain and sleet took over. From a report: In the ski resorts of Morzine and Les Gets in the French Alps, the heavy rainfall meant that full opening of resorts was delayed until two days before Christmas, leaving the industry and the millions of tourists planning trips to stare at the sky in hope. But no amount of wishing and hoping will overcome what is an existential threat to skiing in the Alps, an industry worth $30bn that provides the most popular ski destination in the world.

The science is clear, and is spelled out in carefully weighed-up peer reviewed reports. The most recent, this year, warned that at 2C of global heating above pre-industrial levels, 53% of the 28 European resorts examined would be at very high risk of a scarce amount of snow. Scarce snow has been defined as the poorest coverage seen on average every five years between 1961 and 1990. If the world were to hit 4C of heating, 98% of the resorts would be at very high risk of scarce snow cover. Another study has revealed the way in which snow cover in the Alps has had an "unprecedented" decline over the past 600 years, with the duration of the cover now shorter by 36 days.

In Brazil's Amazon, armed men with a rogue police unit overseeing illegal mining operations intimidated journalists investigating regional violence and trafficking surges. Though Brazil's 2023 deforestation decreased, fires and attacks continued as governments deprioritized crime reduction. Illegal mining finances threats to the climate-critical rainforest, yet improving security was absent from the 2023 UN climate summit agenda. With complex criminal networks forging cross-border alliances and violence escalating, addressing this dilemma is pivotal to safeguarding the Amazon and its Indigenous peoples. Nature: Solutions to these multifaceted issues might not be simple, but practical steps exist. Nations must cooperate to guard against this violence. They must support local communities -- by increasing the state's presence in remote areas and promoting health care, education and sustainable economic development -- and help them to safeguard the rainforest. For example, Indigenous peoples in Peru and Brazil are using drones and GPS devices to monitor their land and detect threats from violent invaders.

Indigenous peoples are the Amazon's best forest guardians, but they need more legally demarcated lands and protective measures, such as funding for Indigenous guards and rapid response and emergency protocols. In 2022, Colombia and Brazil saw the most deaths of environmental and land defenders worldwide. Developing effective strategies to enhance cooperation between law enforcement and local populations must also be a priority. To prevent irreversible damage to the rainforest and the climate, security in the Amazon must be added to the global climate agenda.

"What would you like OpenAI to build/fix in 2024?" the company's CEO asked on X this weekend.

But "Amid all the hysteria about ChatGPT and co, one thing is being missed," argues the Observer — "how energy-intensive the technology is." The current moral panic also means that a really important question is missing from public discourse: what would a world suffused with this technology do to the planet? Which is worrying because its environmental impact will, at best, be significant and, at worst, could be really problematic.

How come? Basically, because AI requires staggering amounts of computing power. And since computers require electricity, and the necessary GPUs (graphics processing units) run very hot (and therefore need cooling), the technology consumes electricity at a colossal rate. Which, in turn, means CO2 emissions on a large scale — about which the industry is extraordinarily coy, while simultaneously boasting about using offsets and other wheezes to mime carbon neutrality.

The implication is stark: the realisation of the industry's dream of "AI everywhere" (as Google's boss once put it) would bring about a world dependent on a technology that is not only flaky but also has a formidable — and growing — environmental footprint. Shouldn't we be paying more attention to this?
Thanks to long-time Slashdot reader mspohr for sharing the article.

With everyone worrying about climate change, CNN shares a list of reasons to feel positive: The year 2023 is on track to see the biggest increase in renewable energy capacity to date, according to the International Energy Agency. China, the world's biggest climate polluter, has made lightning advances in renewables, with the country set to shatter its wind and solar target five years early. A report published in June found that China's solar capacity is now greater than the rest of the world's nations combined, in a surge described by the report's author, Global Energy Monitor, as "jaw-dropping...."

The popularity of electric vehicles has surged this year, with American sales at an all-time high. People in China and Europe are snapping up EVs in large numbers as well... Americans purchased 1 million fully electric vehicles in 2023, an annual record, according to a report from Bloomberg New Energy Finance. Electric vehicles accounted for about 8% of all new vehicles sales in the US during the first half of 2023, according to the report. In China, EVs accounted for 19% of all vehicle sales, and worldwide, they made up 15% of new passenger vehicle sales. EV sales in Europe were up 47% in the first nine months of 2023, according to data from the European Automobile Manufacturers Association (EAMA)
Other positive developments from the article:

• "For more than six days straight, between October 31 to November 6, the nation of more than 10 million people relied solely on renewable energy sources — setting an exciting example for the rest of the world."

• "Deforestation in Brazil fell by 22.3% in the 12 months through July, according to data from the national government, as President Luiz Ignácio Lula da Silva started to make progress on his pledge to rein in the rampant forest destruction that occurred under his predecessor..."

• "The Earth's ozone layer is on track to recover completely within decades, a UN-backed panel of experts announced in January, as ozone-depleting chemicals are phased out across the world."

"The age of the dinosaurs ended 66 million years ago when a city-size asteroid struck a shallow sea off the coast of what is now Mexico," writes CNN.

"But exactly how the mass extinction of 75% of the species on Earth unfolded in the years that followed the cataclysmic impact has remained unclear." Previous research suggested that sulfur released during the impact, which left the 112-mile-wide (180-kilometer-wide) Chicxulub crater, and soot from wildfires triggered a global winter, and temperatures plunged. However, a new study published Monday in the journal Nature Geoscience suggests that fine dust made from pulverized rock thrown up into Earth's atmosphere in the wake of the impact likely played a greater role. This dust blocked the sun to an extent that plants were unable to photosynthesize, a biological process critical for life, for almost two years afterward.

"Photosynthesis shutting down for almost two years after impact caused severe challenges (for life)," said lead study author and planetary scientist Cem Berk Senel, a postdoctoral researcher at the Royal Observatory of Belgium. "It collapsed the food web, creating a chain reaction of extinctions."

To reach their findings, scientists developed a new computer model to simulate the global climate after the asteroid strike. The model was based on published information on Earth's climate at that point in time, as well as new data from sediment samples taken from the Tanis fossil site in North Dakota that captured a 20-year period during the aftermath of the strike.

"I'm optimistic about the world's climate progress," Bill Gates wrote this week — but he also explained why.

"In 2024 and beyond, I predict we will see lots of new innovations coming into the marketplace — even in very complicated areas like nuclear. The climate crisis can feel overwhelming, but I find it easier to stay optimistic when you focus on all the progress we're making. If the world continues to prioritize funding innovation, I'm hopeful we can make good progress on our climate goals."

And elsewhere Gates writes that "AI is about to supercharge the innovation pipeline." My work has always been rooted in a core idea: Innovation is the key to progress. It's why I started Microsoft, and it's why Melinda and I started the Gates Foundation more than two decades ago. Innovation is the reason our lives have improved so much over the last century. From electricity and cars to medicine and planes, innovation has made the world better. Today, we are far more productive because of the IT revolution. The most successful economies are driven by innovative industries that evolve to meet the needs of a changing world.

My favorite innovation story, though, starts with one of my favorite statistics: Since 2000, the world has cut in half the number of children who die before the age of five. How did we do it? One key reason was innovation. Scientists came up with new ways to make vaccines that were faster and cheaper but just as safe. They developed new delivery mechanisms that worked in the world's most remote places, which made it possible to reach more kids. And they created new vaccines that protect children from deadly diseases like rotavirus.

In a world with limited resources, you have to find ways to maximize impact. Innovation is the key to getting the most out of every dollar spent. And artificial intelligence is about to accelerate the rate of new discoveries at a pace we've never seen before.

One of the biggest impacts so far is on creating new medicines. Drug discovery requires combing through massive amounts of data, and AI tools can speed up that process significantly. Some companies are already working on cancer drugs developed this way. But a key priority of the Gates Foundation in AI is ensuring these tools also address health issues that disproportionately affect the world's poorest, like AIDS, TB, and malaria. We're taking a hard look at the wide array of AI innovation in the pipeline right now and working with our partners to use these technologies to improve lives in low- and middle-income countries...

I feel like a kid on Christmas morning when I think about how AI can be used to get game-changing technologies out to the people who need them faster than ever before. This is something I am going to spend a lot of time thinking about next year.
Gates notes that researchers are already exploring questions like "Can AI combat antibiotic resistance?"

Slashdot reader sciencehabit writes: If you've ever seen a cow staring vacantly across a field, or a pig rolling around in its own filth, you might not think there's a lot going on in their head. You wouldn't be alone. People haven't given much credence to the intelligence of farm animals, and neither have scientists. But that's starting to change.

A growing field of research is showing that—when it comes to the minds of goats, cows, and other livestock—we may have been missing something big. Studies published over the past few years have shown that pigs show signs of empathy, goats rival dogs in some tests of social intelligence, and cows can be potty trained.

Much of this work is being carried out at the Research Institute for Farm Animal Biology (FBN) in Dummerstorf, Germany, one of the world's leading centers for investigating the minds of creatures that often end up on our dinner plate. From cows making friends to goats exhibiting signs of altruism, farm animals are upending popular—and scientific—conceptions of what's going on in their minds.

The work may not just rewrite our thinking about livestock, it might also change how we treat them. As Jan Langbein, an applied ethologist at FBN told says, 'If we don't understand how these animals think, then we won't understand what they need. And if we don't understand what they need, we can't design better environments for them.'

During a meeting of the National Space Council, Vice President Kamala Harris said an international astronaut will land on the Moon during one of NASA's Artemis missions. "Today, in recognition of the essential role that our allies and partners play in the Artemis program, I am proud to announce that alongside American astronauts, we intend to land an international astronaut on the surface of the Moon by the end of the decade," Harris said. Ars Technica reports: Although the National Space Council is useful in aggregating disparate interests across the US government to help form more cohesive space policies, public meetings like the one Wednesday can seem perfunctory. Harris departed the stage soon after her speech, and other government officials read from prepared remarks during the rest of the event. Nevertheless, Harris' announcement highlighted the role the space program plays in elevating the soft power of the United States. It was widely assumed an international astronaut would eventually land on the Moon with NASA. Harris put a deadline on achieving this goal.

NASA has long included astronauts from its international partners on human spaceflight missions, dating back to the ninth flight of the space shuttle in 1983, when West German astronaut Ulf Merbold joined five Americans on a flight to low-Earth orbit. This was seen by US government officials as a way to foster closer relations with like-minded countries. The inclusion of foreign astronauts on US missions also repays partner nations who make financial commitments to US-led space projects with a high-profile flight opportunity for one of their citizens.

Among the international partners contributing to Artemis, it seems most likely a European astronaut would get the first slot for a landing with NASA. ESA funded the development of the service modules used on NASA's Orion spacecraft, which will ferry astronauts from Earth to the Moon and back. These modules provide power and propulsion for Orion. ESA is also developing refueling and communications infrastructure for the Gateway mini-space station to be constructed in orbit around the Moon.

A Japanese astronaut might also have a shot at getting a seat on an Artemis landing. Japan's government has committed to providing the life-support system for the Gateway's international habitation module, along with resupply services to deliver cargo to Gateway. Japan is also interested in building a pressurized rover for astronauts to drive across the lunar surface. In recognition of Japan's contributions, NASA last year committed to flying a Japanese astronaut aboard Gateway. Canada is building a robotic arm for Gateway, but a Canadian astronaut already has a seat on NASA's first crewed Artemis mission, albeit without a trip to the lunar surface.

The politics of solving climate change may, paradoxically, require producing more fossil fuels for a while. Roge Karma, writing for The Atlantic: By boosting domestic oil supply, the Biden administration seems to be contributing to the very problem it claims to want to solve. The reality is more complicated. "Pushing for reductions in U.S. oil production is like squeezing a balloon -- the production will 'pop out' somewhere else," writes Samantha Gross, an energy-and-climate expert at the Brookings Institution. The world's energy needs are growing rapidly, which means oil companies are going to supply it regardless of what the White House does. If the U.S. were to cut back tomorrow, prices would rise. In the short term, this would lead to less consumption and lower emissions. But those high prices would only entice producers in other countries to step in, as many did in the months after Russia's invasion.

For that reason, reductions in U.S. oil production could actually result in higher overall emissions. The U.S. has one of the least emissions-intensive oil industries on the planet. Shifting production to countries with looser standards would likely be worse for the climate. But the deeper explanation for the Biden administration's actions has to do with the politics of climate change. Put simply, pursuing a decarbonization agenda requires Biden to maintain political support, and there is no surer way to lose political support than by presiding over high gas prices. Biden's approval rating has tracked gas prices for most of his presidency (although he hasn't yet benefited from recent improvements), and the drop in prices in the months leading up to the 2022 midterms may have contributed to Democrats' unexpectedly strong performance in those elections. Plus, when the price of energy goes up, the price of everything else tends to rise as well, sparking further inflation.

Beeper is giving up on its mission to bring iMessage to Android after implementing a series of fixes that Apple has knocked down one by one over the past month. From a report: Although the company has issued a complex workaround, it says it has no plans to roll out another one if this one is knocked down by Apple. "Each time that Beeper Mini goes 'down' or is made to be unreliable due to interference by Apple, Beeper's credibility takes a hit," the company wrote in a blog post. "It's unsustainable. As much as we want to fight for what we believe is a fantastic product that really should exist, the truth is that we can't win a cat-and-mouse game with the largest company on earth. With our latest software release, we believe we've created something that Apple can tolerate existing. We do not have any current plans to respond if this solution is knocked offline"

Artificial rain has been used in an attempt to lower pollution levels in Lahore, Pakistan. From a report: The capital city of the eastern province of Punjab, near the Indian border, has some of the worst air quality in the world and has become extremely polluted because of a growing population of more than 13 million people. By early December, the air quality in the city had grown so bad that schools, markets and parks were closed for four days. By last weekend, the city's air quality index (AQI) had reached levels considered extremely hazardous to health.

To try to reduce them, on Saturday the Punjab government used cloud seeding to create rain in 10 locations around the city using a small Cessna plane. To create the clouds, there needs to be enough moisture already present in the clouds in the lower atmosphere. In summer, common table salt mixed with water is sprayed over the cloud patches from planes. After a few hours, the mist integrates with the clouds and produces rain. In winter, the clouds are seeded using flakes of silver iodide, which can be fired from a vehicle or a plane. The practice, also known as "blueskying," has been used to induce precipitation in several countries in the Middle East, as well as China and India.

The future of water may be changing in California. The state Water Resources Control Board has signed off on regulations to turn more recycled wastewater from our homes into drinking water. From a report: The regulations were approved unanimously by the board on Tuesday and now give the go-ahead for local water agencies to plan to turn wastewater into water we can drink through a process called Direct Potable Reuse. Darrin Polhemus, the division of drinking water director with the State Water Resources Control Board, said this approval was a very big step for California. "It really will be the highest quality water delivered in the state when it's done," Polhemus said.

California's new rules would let, but not require, local water agencies to take wastewater from toilets or showers, treat it, and then put it right back into the drinking water system. "Direct potable reuse is just a really critical strategy for our state to have as we move to this new hydrology that we have, and as everyone has already said, increasing our resilience and reducing our reliance on imported water," said Laurel Firestone, board member for the State Water Resources Control Board.

When hurricane Larry made landfall in the Atlantic in 2021, it was depositing over 100,000 microplastics per square meter of land per day. The findings have been published in the journal Communications Earth and Environment. Wired reports: As hurricane Larry curved north in the Atlantic in 2021, sparing the eastern seaboard of the United States, a special instrument was waiting for it on the coast of Newfoundland. Because hurricanes feed on warm ocean water, scientists wondered whether such a storm could pick up microplastics from the sea surface and deposit them when it made landfall. Larry was literally a perfect storm: Because it hadn't touched land before reaching the island, anything it dropped would have been scavenged from the water or air, as opposed to, say, a highly populated city, where you'd expect to find lots of microplastics. [...]

The instrument in a clearing on Newfoundland was quite simple: a glass cylinder, holding a little bit of ultrapure water, securely attached to the ground with wooden stakes. Every six hours before, during, and after the hurricane, the researchers would come and empty out the water, which would have collected any particles falling -- both with and without rain -- on Newfoundland. "It's just a place that experiences a lot of extreme weather events," says Earth scientist Anna Ryan of Dalhousie University, lead author of the paper. "Also, it's fairly remote, and it's got a pretty low population density. So you don't have a bunch of nearby sources of microplastics."

The team found that even before and after Larry, tens of thousands of microplastics fell per square meter of land per day. But when the hurricane hit, that figure spiked up to 113,000. "We found a lot of microplastics deposited during the peak of the hurricane," says Ryan, "but also, overall deposition was relatively high compared to previous studies." These studies were done during normal conditions, but in more remote locations, she says. The researchers also used a technique known as back trajectory modeling -- basically simulating where the air that arrived at the instrument had been previously. That confirmed that Larry had picked up the microplastics at sea, lofted them into the air, and dumped them on Newfoundland. [...] The Newfoundland study notes that Larry happened to pass over the garbage patch of the North Atlantic Gyre, where currents accumulate floating plastic.

An anonymous reader quotes a report from Ars Technica: With redesigned engine components, Blue Origin's New Shepard rocket took off from West Texas and flew to the edge of space on Tuesday with a package of scientific research and technology demonstration experiments. This was the first flight of Blue Origin's 60-foot-tall (18-meter) New Shepard rocket since September 12, 2022, when an engine failure destroyed the booster and triggered an in-flight abort for the vehicle's pressurized capsule. There were no passengers aboard for that mission, and the capsule safely separated from the failed booster and parachuted to a controlled landing.

The flight on Tuesday also didn't carry people. Instead, Blue Origin, Jeff Bezos's space company, lofted 33 payloads from NASA, research institutions, and commercial companies. Some of these payloads were flown again on Tuesday's launch after failing to reach space on the failed New Shepard mission last year. Among these payloads were an experiment to demonstrate hydrogen fuel cell technology in microgravity and an investigation studying the strength of planetary soils under different gravity conditions. Blue Origin's capsule, mounted on top of the rocket, also flew 38,000 postcards submitted by students through Club for the Future, the company's nonprofit.

For Tuesday's return-to-flight mission, the New Shepard rocket ignited its BE-3PM engine and climbed away from Blue Origin's remote launch site near Van Horn, Texas, at 10:42 am CST (16:42 UTC). The hydrogen-fueled engine fired for more than two minutes, then shut down as scheduled as the rocket continued coasting upward, reaching an altitude of more than 347,000 feet (106 kilometers). The booster returned for a precision propulsive landing a short distance from the launch pad, and Blue Origin's capsule deployed three parachutes to settle onto the desert floor, completing a 10-minute up-and-down flight. Blue Origin has launched 24 missions with its reusable New Shepard rocket, including six flights carrying people just over the Karman line, the internationally recognized boundary of space 100 kilometers above Earth.