Space.com writes that NASA's plan to return samples from Mars to the earth "is facing major challenges, according to a new report.

"Design, cost and scheduling are all significant obstacles, an audit report of NASA's Mars Sample Return (MSR) Program by the agency's Office of Inspector General (OIG) finds..." It involves landing on Mars to collect samples taken by the Perseverance rover and launching those samples to rendezvous with an orbiter, which will haul them to Earth. Perseverance is already on Mars, snagging and storing samples. But the program still needs to build a Sample Retrieval Lander and an Earth Return Orbiter, the latter being developed and funded by the European Space Agency. The Mars Sample Return program is one of the most technically complex, operationally demanding and ambitious robotic science missions ever undertaken by NASA, according to the OIG report.

The report notes design, architecture and schedule issues with the Capture Containment and Return System. These design issues resulted in adding about $200 million to the budget and one year of lost schedule... There is concern that, due to the number and significance of cost increase indicators so far, the $7.4 billion estimate is "premature and may be insufficient," the report finds. Now, the complexity... could drive costs to between $8 billion to $11 billion, the OIG report notes, citing a September 2023 Independent Review Board report. Notably, a July 2020 estimate listed costs of $2.5 to $3 billion.

These new figures indicate significant financial challenges and uncertainties... Issues include inflation, supply chain problems and increases in funding requests for specific program components.

Energy-related emissions of carbon dioxide hit a record high in 2023, the International Energy Agency (IEA) said in a report on Friday. The IEA analysis showed that it rose by 410 million tonnes, or 1.1%, in 2023 to 37.4 billion tonnes. From a report: "Far from falling rapidly -- as is required to meet the global climate goals set out in the Paris Agreement -- CO2 emissions reached a new record high," the IEA said. However, the Paris-based watchdog also found clean energy including wind and solar energy, as well as electric vehicles, had helped to offset the impact of the continued burning of coal and oil growth, which was 1.3% in 2022.

The reopening of China's economy after the COVID-19 pandemic and a recovery in the aviation sector contributed to an overall rise, the IEA said in its report. Severe droughts last year in China, the United States, India, and other countries hampered hydropower production. It accounted for around 40% of the rise in emissions or 170 million tonnes of CO2. "Without this effect, emissions from the global electricity sector would have fallen in 2023," the IEA said. Carbon dioxide emissions from coal accounted for the remaining increase. The IEA analysis showed that 2023 was the first year in which at least half of electricity generation in industrialized countries came from low-emission sources such as renewable energy and nuclear power. Energy-related emissions in the United States fell by 4.1%, and 9% in the European Union, driven by a surge in renewable power generation.

Eating ultraprocessed foods raises the risk of developing or dying from dozens of adverse health conditions, according to a new review of 45 meta-analyses on almost 10 million people. From a report: "We found consistent evidence linking higher intakes of ultra-processed foods with over 70% of the 45 different health outcomes we assessed," said senior author Wolfgang Marx, a senior research fellow at the Food & Mood Centre at Deakin University in Geelong, Australia, in an email. A higher intake was considered about one serving or about 10% more ultraprocessed foods per day, said Heinz Freisling, a scientist in the nutrition and metabolism branch of the World Health Organization's International Agency for Research on Cancer, in an email.

"This proportion can be regarded as 'baseline' and for people consuming more than this baseline, the risk might increase," said Freisling, who was not involved in the study. Researchers graded each study as having credible or strong, highly suggestive, suggestive, weak or no evidence. All the studies in the review were published in the past three years, and none was funded by companies involved in the production of ultraprocessed foods, the authors said. "Strong evidence shows that a higher intake of ultra-processed foods was associated with approximately 50% higher risk of cardiovascular disease-related death and common mental disorders," said lead author Dr. Melissa Lane, a postdoctoral research fellow at Deakin, in an email. Cardiovascular disease encompasses heart attacks, stroke, clogged arteries and peripheral artery disease. The study: Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses (BMJ)

Fast food chain Wendy's announced it's adopting a similar approach to Uber's Surge Pricing policy by dynamically adjusting the prices of its menu items during peak demand periods at certain locations. The controversial strategy seeks to leverage real-time data to align pricing and demand, enhancing efficiency and potentially improving customer satisfaction. From a report: During a conference call earlier this month, Wendy's CEO Kirk Tanner said the fast-food chain would experiment with dynamic pricing as early as next year. "Beginning as early as 2025, we will begin testing more enhanced features like dynamic pricing and daypart offerings, along with AI-enabled menu changes and suggestive selling," he said. "As we continue to show the benefit of this technology in our company-operated restaurants, franchisee interest in digital menu boards should increase, further supporting sales and profit growth across the system."

Prices seesaw all the time on the sites of online retailers like Amazon that use algorithms and artificial intelligence to monitor competitors and glean insights into individual shoppers, adjusting prices depending on interest in the product or in the brand, said Timothy Webb, an assistant professor at the University of Delaware's hospitality and sport business management program. Coupons and other offers are also routinely dangled in mobile apps to encourage people to make purchases. "A lot of this stuff is already happening even if you don't realize that it is happening. If you have the Starbucks app and I have the Starbucks app, we probably have different offers," Webb said. "We might not be in the drive-through and they just increased the prices, but we are already paying different prices for the same products."

But, he says, Wendy's fans will likely see moderate, not massive, price swings during periods of peak demand. "It's not like $200 or $300 on a flight. This is a hypercompetitive industry. If Wendy's goes up $2 to $3 on a burger at dinner time, I would be shocked. People have too many options. They will just walk down the street and eat at Burger King instead," Webb said. "There will just be little price changes here."

According to the Wall Street Journal (paywalled), Canada has proposed new rules that would compel digital platforms to remove online content that features the sexual exploitation of children or intimate images without consent of the individuals involved. From a report: The rules were years in the making, and represent the third and possibly final installment of measures aimed at regulating digital platforms. Measures introduced since 2022 aim to increase the amount of domestic, Canadian-made content on streaming services, such as Netflix, and require digital platforms to help Canadian news-media outlets finance their newsroom operations. The legislation needs to be approved by Canada's Parliament before it takes effect.

Canada said its rules are based on concepts introduced by the European Union, the U.K. and Australia. Canadian officials say the proposed measures would apply to social-media platforms, adult-entertainment sites where users can upload content, and live-streaming services. These services, officials said, are expected to expeditiously remove two categories of content: That which sexually exploits a child or an abuse survivor, and intimate content broadcast without an individual's consent. The latter incorporates so-called revenge porn, or the nonconsensual posting or dissemination of intimate images, often after the end of a romantic relationship. Officials said private and encrypted messaging services are excluded from the proposed regulations.

Canadian officials said platforms will have a duty to either ensure the material is not published, or take it down once notified. Canada also intends to set up a new agency, the Digital Safety Commission, to enforce the rules, order harmful content taken down, and hold digital services accountable. Platforms that violate the rules could face a maximum penalty of up to 25 million Canadian dollars, or the equivalent of $18.5 million, officials said.

"One London resident watched on CCTV as a thief walked up to his £40,000 car and drove away," reports the Observer. "Now manufacturers say they are being drawn in to a hi-tech 'arms race' with criminals." [H]i-tech devices disguised as handheld games consoles are being traded online for thousands of pounds and are used by organised crime gangs to mimic the electronic key on an Ioniq 5, opening the doors and starting the engine. The device, known as an "emulator", works by intercepting a signal from the car, which is scanning for the presence of a legitimate key, and sending back a signal to gain access to the vehicle...

Hyundai says it is looking at measures to prevent the use of emulators "as a priority". But it is not the only carmaker whose vehicles appear to be vulnerable. An Observer investigation found that models by Toyota, Lexus and Kia have also been targeted... British motorists now face an increase in the number of thefts and rising insurance premiums... Car thefts are at their highest level for a decade in England and Wales, rising from 85,803 vehicles in the year to March 2012 to 130,270 in the year to March 2023 — an increase of more than 50%. Part of the reason, say experts, is the rise of keyless entry...

Kia did not respond to a request for comment. A spokesperson for Toyota, which owns Lexus, said: "Toyota and Lexus are continuously working on developing technical solutions to make vehicles more secure. Since introducing enhanced security hardware on the latest versions of a number of models, we have seen a significant drop-off in thefts. For older models we are currently developing solutions."
Another common attack requires entry to the vehicle first, according to the article, but then uses the vehicle's onboard diagnostic port to program "a new key linked to the vehicle..."

"Many owners of Ioniq 5s, which sell from around £42,000, now use steering locks to deter thieves."

jbmartin6 shares a report from Phys.Org: Threatening messages aimed to prevent digital piracy have the opposite effect if you're a man, a new study from the University of Portsmouth has found. According to the research, women tend to respond positively to this kind of messaging, but men typically increase their piracy behaviors by 18%. [...] This paper studies how effective anti-piracy messages are as a deterrent, examining the change in TV and film piracy intentions among 962 adults compared with their past behavior. The three messages examined in the study were verbatim copies of three real-world anti-piracy campaigns. Two of the campaigns used threatening messages to try to combat piracy and the third was educational in tone.

One of the threatening messages was from crime reduction charity, Crimestoppers, which focused on the individual's risk of computer viruses, identity fraud, money and data theft and hacking. The other message was based on a campaign by the French government, which used a "three strike" process, whereby infringers were given two written warnings before their internet access was terminated. The educational message was taken from the campaign "Get It Right from a Genuine Site," which focuses on the cost to the economy and to the individual creative people, and signposts consumers away from piracy sites and towards legal platforms such as Spotify or Netflix.

The study found that one threatening message influences women to reduce their piracy intentions by over 50%, but men increase their piracy behaviors. The educational messages had no effect on either men or women. "The research shows that anti-piracy messages can inadvertently increase piracy, which is a phenomenon known as psychological reactance," explained [lead author, Kate Whitman, from the University of Portsmouth's Centre for Cybercrime and Economic Crime]. "From an evolutionary psychology point of view, men have a stronger reaction to their freedom being threatened and therefore they do the opposite." Moreover, the study found that participants with the most favorable attitudes towards piracy demonstrated the most polarized changes in piracy intentions -- the threatening messages increased their piracy even more. The study has been published in the Journal of Business Ethics.

"I'm not so sure about the author's attribution of this difference to evolutionary psychology, so looking forward to some educational comments on that," adds Slashdot reader jbmartin6.

Academics have found that the U.S. mortality declines during recessions, with "reductions in air pollution... a quantitatively important mechanism." Abstract of a paper on National Bureau of Economic Research: We leverage spatial variation in the severity of the Great Recession across the United States to examine its impact on mortality and to explore implications for the welfare consequences of recessions. We estimate that an increase in the unemployment rate of the magnitude of the Great Recession reduces the average, annual age-adjusted mortality rate by 2.3 percent, with effects persisting for at least 10 years. Mortality reductions appear across causes of death and are concentrated in the half of the population with a high school degree or less. We estimate similar percentage reductions in mortality at all ages, with declines in elderly mortality thus responsible for about three-quarters of the total mortality reduction. Recession-induced mortality declines are driven primarily by external effects of reduced aggregate economic activity on mortality, and recession-induced reductions in air pollution appear to be a quantitatively important mechanism. Incorporating our estimates of pro-cyclical mortality into a standard macroeconomics framework substantially reduces the welfare costs of recessions, particularly for people with less education, and at older ages where they may even be welfare-improving.

An anonymous reader shares a report: In a concession to automakers and labor unions, the Biden administration intends to relax elements of one of its most ambitious strategies to combat climate change, limits on tailpipe emissions that are designed to get Americans to switch from gas-powered cars to electric vehicles, according to three people familiar with the plan. Instead of essentially requiring automakers to rapidly ramp up sales of electric vehicles over the next few years, the administration would give car manufacturers more time [non-paywalled source], with a sharp increase in sales not required until after 2030, these people said. They asked to remain anonymous because the regulation has not been finalized. The administration plans to publish the final rule by early spring.

The change comes as President Biden faces intense crosswinds as he runs for re-election while trying to confront climate change. He is aiming to cut carbon dioxide emissions from gasoline-powered vehicles, which make up the largest single source of greenhouse gases emitted by the United States. At the same time, Mr. Biden needs cooperation from the auto industry and political support from the unionized auto workers who backed him in 2020 but now worry that an abrupt transition to electric vehicles would cost jobs. Meanwhile, consumer demand has not been what automakers hoped, with potential buyers put off by sticker prices and the relative scarcity of charging stations. The EPA last year proposed the toughest-ever limits on tailpipe emissions. The rules would be so strict, the only way car makers could comply would be to sell a tremendous number of zero-emissions vehicles in a relatively short time frame. The E.P.A. designed the proposed regulations so that 67% of sales of new cars and light-duty trucks would be all-electric by 2032, up from 7.6% in 2023, a radical remaking of the American automobile market.

Capital One is buying Discover Financial (non-payalled source) in a deal that would marry two of the largest credit-card companies in the U.S. WSJ: The all-stock deal could be announced Tuesday, according to people familiar with the matter. Discover has a market value of $28 billion, and the takeover would be expected to value it at a premium to that. Buying Discover will give Capital One, a credit-card lender with a market value of a little over $52 billion, a network that would vastly increase its power in the payments ecosystem.

Card networks are critical to enabling transactions and setting fees that merchants pay when consumers shop with credit cards. Though much smaller than Visa and Mastercard, Discover is one of the few competitors to those companies in the U.S. and it is one of a small number of card issuers that also has a payments network. Capital One, the ninth-largest bank in the country and a major credit-card issuer, uses Visa and Mastercard for most of its cards. The bank plans to switch at least some of its cards to the Discover network, while continuing to use Visa and Mastercard on others. Those larger networks have more merchant acceptance abroad than Discover does. Update: Capital One has proposed to pay $35.3 billion for Discover in an all-stock deal.

High-capacity DNA data storage "is closer than you think," Slashdot wrote in 2019.

Now IEEE Spectrum brings an update on where we're at — and where we're headed — by a participant in the DNA storage collaboration between Microsoft and the Molecular Information Systems Lab of the Paul G. Allen School of Computer Science and Engineering at the University of Washington. "Organizations around the world are already taking the first steps toward building a DNA drive that can both write and read DNA data," while "funding agencies in the United States, Europe, and Asia are investing in the technology stack required to field commercially relevant devices." The challenging part is learning how to get the information into, and back out of, the molecule in an economically viable way... For a DNA drive to compete with today's archival tape drives, it must be able to write about 2 gigabits per second, which at demonstrated DNA data storage densities is about 2 billion bases per second. To put that in context, I estimate that the total global market for synthetic DNA today is no more than about 10 terabases per year, which is the equivalent of about 300,000 bases per second over a year. The entire DNA synthesis industry would need to grow by approximately 4 orders of magnitude just to compete with a single tape drive. Keeping up with the total global demand for storage would require another 8 orders of magnitude of improvement by 2030. But humans have done this kind of scaling up before. Exponential growth in silicon-based technology is how we wound up producing so much data. Similar exponential growth will be fundamental in the transition to DNA storage...

Companies like DNA Script and Molecular Assemblies are commercializing automated systems that use enzymes to synthesize DNA. These techniques are replacing traditional chemical DNA synthesis for some applications in the biotechnology industry... [I]t won't be long before we can combine the two technologies into one functional device: a semiconductor chip that converts digital signals into chemical states (for example, changes in pH), and an enzymatic system that responds to those chemical states by adding specific, individual bases to build a strand of synthetic DNA. The University of Washington and Microsoft team, collaborating with the enzymatic synthesis company Ansa Biotechnologies, recently took the first step toward this device... The path is relatively clear; building a commercially relevant DNA drive is simply a matter of time and money...

At the same time, advances in DNA synthesis for DNA storage will increase access to DNA for other uses, notably in the biotechnology industry, and will thereby expand capabilities to reprogram life. Somewhere down the road, when a DNA drive achieves a throughput of 2 gigabases per second (or 120 gigabases per minute), this box could synthesize the equivalent of about 20 complete human genomes per minute. And when humans combine our improving knowledge of how to construct a genome with access to effectively free synthetic DNA, we will enter a very different world... We'll be able to design microbes to produce chemicals and drugs, as well as plants that can fend off pests or sequester minerals from the environment, such as arsenic, carbon, or gold. At 2 gigabases per second, constructing biological countermeasures against novel pathogens will take a matter of minutes. But so too will constructing the genomes of novel pathogens. Indeed, this flow of information back and forth between the digital and the biological will mean that every security concern from the world of IT will also be introduced into the world of biology...

The future will be built not from DNA as we find it, but from DNA as we will write it.
The article makes an interesting point — that biology labs around the world already order chemically-synthesized ssDNA, "delivered in lengths of up to several hundred bases," and sequence DNA molecules up to thousands of bases in length.

"In other words, we already convert digital information to and from DNA, but generally using only sequences that make sense in terms of biology."

"For nearly a year now, a bizarre heating event has been unfolding across the world's oceans," reports Wired.

"In March 2023, global sea surface temperatures started shattering record daily highs and have stayed that way since..." Brian McNoldy, a hurricane researcher at the University of Miami. "It's really getting to be strange that we're just seeing the records break by this much, and for this long...." Unlike land, which rapidly heats and cools as day turns to night and back again, it takes a lot to warm up an ocean that may be thousands of feet deep. So even an anomaly of mere fractions of a degree is significant. "To get into the two or three or four degrees, like it is in a few places, it's pretty exceptional," says McNoldy.

So what's going on here? For one, the oceans have been steadily warming over the decades, absorbing something like 90 percent of the extra heat that humans have added to the atmosphere...

A major concern with such warm surface temperatures is the health of the ecosystems floating there: phytoplankton that bloom by soaking up the sun's energy and the tiny zooplankton that feed on them. If temperatures get too high, certain species might suffer, shaking the foundations of the ocean food web. But more subtly, when the surface warms, it creates a cap of hot water, blocking the nutrients in colder waters below from mixing upwards. Phytoplankton need those nutrients to properly grow and sequester carbon, thus mitigating climate change...

Making matters worse, the warmer water gets, the less oxygen it can hold. "We have seen the growth of these oxygen minimum zones," says Dennis Hansell, an oceanographer and biogeochemist at the University of Miami. "Organisms that need a lot of oxygen, they're not too happy when the concentrations go down in any way — think of a tuna that is expending a lot of energy to race through the water."
But why is this happening? The article suggests less dust blowing from the Sahara desert to shade the oceans, but also 2020 regulations that reduced sulfur aerosols in shipping fuels. (This reduced toxic air pollution — but also some cloud cover.)

There was also an El Nino in the Pacific ocean last summer — now waning — which complicates things, according to biological oceanographer Francisco Chavez of the Monterey Bay Aquarium Research Institute in California. "One of our challenges is trying to tease out what these natural variations are doing in relation to the steady warming due to increasing CO2 in the atmosphere."

But the article points out that even the Atlantic ocean is heating up — and "sea surface temperatures started soaring last year well before El Niño formed." And last week the U.S. Climate Prediction Center predicted there's now a 55% chance of a La Nina in the Atlantic between June and August, according to the article — which could increase the likelihood of hurricanes.

Thanks to long-time Slashdot reader mrflash818 for sharing the article.

Tech workers are accused of driving up rents in America's major cities — but in fact, the problem may be everywhere. Half of America's renters "are paying more than a third of their salary in housing costs," reports NPR's Weekend Edition, "and for those looking to buy, scant few homes on the market are affordable for a typical household.

"To ramp up supply, cities are taking a fresh look at their zoning rules and the regulations that spell out what can be built where and what can't." And many are finding that their old rules are too rigid, making it too hard and too expensive to build many new homes. So these cities, as well as some states, are undertaking a process called zoning reform. They're crafting new rules that do things like allow multifamily homes in more neighborhoods, encourage more density near transit and streamline permitting processes for those trying to build... Minneapolis was ahead of the pack as it made a series of changes to its zoning rules in recent years: allowing more density downtown and along transit corridors, getting rid of parking requirements, permitting construction of accessory dwelling units, which are secondary dwellings on the same lot. And one change in particular made national news: The city ended single-family zoning, allowing two- and three-unit homes to be built in every neighborhood.

Researchers at The Pew Charitable Trusts examined the effects of the changes between 2017 and 2022, as many of the city's most significant zoning reforms came into effect. They found what they call a "blueprint for housing affordability." "We saw Minneapolis add 12% to its housing stock in just that five-year period, far more than other cities," Alex Horowitz, director of housing policy initiatives at Pew, told NPR... "The zoning reforms made apartments feasible. They made them less expensive to build. And they were saying yes when builders submitted applications to build apartment buildings. So they got a lot of new housing in a short period of time," says Horowitz. That supply increase appears to have helped keep rents down too. Rents in Minneapolis rose just 1% during this time, while they increased 14% in the rest of Minnesota.

Horowitz says cities such as Minneapolis, Houston and Tysons, Va., have built a lot of housing in the last few years and, accordingly, have seen rents stabilize while wages continue to rise, in contrast with much of the country... Now, these sorts of changes are happening in cities and towns around the country. Researchers at the University of California, Berkeley built a zoning reform tracker and identified zoning reform efforts in more than 100 municipal jurisdictions in the U.S. in recent years.
Other cities reforming their codes include Milwaukee, Columbus, New York City, Walla Walla, and South Bend, Indiana, according to the article — which also includes this quote from Nolan Gray, the urban planner who wrote the book Arbitrary Lines: How Zoning Broke the American City and How to Fix It.

"Most American cities and most American states have rules on the books that make it really, really hard to build more infill housing. So if you want a California-style housing crisis, don't do anything. But if you want to avoid the fate of states like California, learn some of the lessons of what we've been doing over the last few years and allow for more of that infill, mixed-income housing."

Although interestingly, the article points out that California in recent years has been pushing zoning reform at the state level, "passing lots of legislation to address the state's housing crisis, including a law that requires cities and counties to permit accessory dwelling units. Now, construction of ADUs is booming, with more than 28,000 of the units permitted in California in 2022."

A new satellite mission to track planet-warming emissions of methane gas is finally set to launch, now aided with AI technology to help build a global map of oil and gas infrastructure and surveil it for leaks [Editor's note: the link may be paywalled; alternative source]. From a report: The MethaneSAT satellite was announced by the Environmental Defense Fund six years ago as a way to monitor releases of methane, an invisible gas that researchers estimate is responsible for almost a third of the emissions-induced increase in global temperatures since the start of the industrial era. The satellite is now scheduled to blast into space in March aboard a rocket operated by Elon Musk's SpaceX. On Wednesday, Google said it would provide the AI computing capabilities required to crunch vast amounts of data produced by the orbiting methane monitor.

MethaneSAT is the latest example of how satellites are used to detect methane emissions from oil and gas facilities, which is more than 80 times more potent than carbon dioxide at trapping heat in the atmosphere over a 20-year timescale. Experts say reducing methane emissions is one of the most powerful short-term actions needed to address global warming. The International Energy Agency this year found the global energy industry was responsible for 135mn tonnes of methane emissions in 2022, only slightly below record high levels of 2019. Existing satellites have detected more than 500 "super-emitting" events in 2022 from oil and gas operations, the IEA said, with a further 100 such events at coal mines, which can release methane during or after operations.

An anonymous reader quotes a report from Axios: After decades of progress in the U.S. toward cleaner air, climate change-related events will cause a steady deterioration through 2054. New research from the nonprofit First Street Foundation is part of a hyperlocal air quality model showing shifts down to the property level between 2024 and 2054. Its conclusions flow from methods contained in three peer-reviewed studies published by the coauthors. The report itself is not peer reviewed, however. The study finds that climate change is increasing the prevalence of two of the air pollutants most harmful to human health: particulate matter, commonly referred to as PM2.5, and tropospheric ozone.

PM2.5 are tiny particles emitted by vehicles, power plants, wildfires and other sources. They can get lodged in people's lungs and enter the bloodstream, causing or exacerbating numerous health problems. Through the use of air quality observations and the development of the new model, First Street's researchers found that the West will be particularly hard hit by increasing amounts of PM2.5 emissions, as wildfires become more frequent and severe. [...] Future projections estimate a continued increase in PM2.5 levels by nearly 10% over the next 30 years, said Jeremy Porter, head of climate implications at First Street, tells Axios in an interview. This would "completely" erase air quality gains made in the last two decades, he said.

Porter says that whereas pollutants from cars and factors could be targeted by regulations over the past few decades (and the EPA is proposing tightening some further), climate-related deterioration in air quality is a much tougher problem to solve. Instead of national regulations, climate action requires global emissions cuts, and even sharp declines in greenhouse gas emissions may not alter trend lines for the next few decades. The population exposed to "dangerous" days on the air quality index is likely to grow to 11.2 million between 2024 and 2054, an increase of about 13%. A 27% gain in the population exposed to "hazardous" (or maroon) days on the AQI is likely between the present climate and 30 years from now, the report finds. Porter said that while 83 million people are exposed to at least one "unhealthy" (red) day, this is likely to grow to over 125 million during the next three decades. "The climate penalty, associated with the rapidly increasing levels of air pollution, is perhaps the clearest signal we've seen regarding the direct impact climate change is having on our environment," Porter told Axios via email.

Shell once announced it would build 48 new Hydrogen fueling stations for light-duty vehicles in California, according to the blog Hydrogen Insights. But then in September, Shell told the site they'd "discontinued" that plan.

And last month the Inside EVs blog noted that in all of 2023, just 2,968 hydrogen cars were sold "in the United States — and by that, we mean in California, where the series-produced models are available." That's according to data from the Hydrogen Fuel Cell Partnership — admittedly a 10% increase from 2022's sales figure of 2,707 — but with both numbers lower than 2021's sales of 3,341. "The overall cumulative sales of hydrogen fuel cell vehicles exceeded 17,940 as of the end of the quarter (not counting vehicles removed from use), which is 20% more than a year ago."

Then this week Shell said it will "no longer be operating" any light-duty hydrogen fuelling stations in the U.S., and will close all seven of its California pumping stations immediately. (Three in San Francisco, one in Berkeley, one in San Jose, and two in the Sacramento area.) Inside EVs says Shell's move "represents another blow to the struggling hydrogen car market in the only state where the fuel is widely available at all." Shell had, until recently, operated seven of the 55 total retail hydrogen stations in California, per the Hydrogen Fuel Cell Partnership (H2FCP). That makes this a blow, but not apocalyptic news for the (small) hydrogen community....

In the letter announcing the closure, Shell Hydrogen Vice President Andrew Beard said they were shutting them down "due to hydrogen supply complications and other external market factors." It's not hard to see what Beard is referencing here... Hydrogen Insight reports that this shortage has been disrupting stations since August 13...

Some are also down for repairs, as many hydrogen stations suffer from serious reliability issues. Iwatani, a Japanese gas company that is one of the two largest names in American hydrogen filling stations, is currently suing the company that provided the core technology for its stations. In a court filing viewed by Hydrogen Insight, Iwatini alleges that its provider did not test its equipment in a real-world commercial scenario, hid defects, and misled the company. It is, in short, a big mess.

All of this makes the future of hydrogen fuel-cell vehicles in the United States even more uncertain. The technology has struggled to catch on, as the stations and their fuel remain expensive. Though hydrogen car manufacturers usually include a large amount of free fuel in the purchase of a vehicle, once that runs out consumers are left with eye-watering prices from stations that are often broken, out of fuel, or swarmed with long lines. It's why used hydrogen cars are so cheap, and why they still aren't a good deal.

Few companies can make a better case for it than Shell, though, as the cheapest way to produce hydrogen involves a lot of natural gas. Its proximity to the fossil-fuel industry was supposed to make it cheaper, and provide incentive for robust fueling infrastructure. That hasn't played out, though, and one of the largest oil giants is throwing in the towel. If even a fossil giant like Shell can't justify investing in the future of light-duty hydrogen infrastructure, we're not sure who can.

An anonymous Slashdot reader shared this report from SiliconANGLE: The Rust Foundation, which supports the development of the popular open-source Rust programming language... shared that Google LLC had made a $1 million contribution specifically earmarked for a C++/Rust interoperability effort known as the "Interop Initiative." The initiative aims to foster seamless integration between Rust and the widely used C++ programming language, addressing one of the significant barriers to Rust's adoption in legacy systems entrenched in C++ code.

Rust has the ability to prevent common memory errors that plague C++ programs and offers a path toward more secure and reliable software systems. However, transitioning from C++ to Rust presents notable challenges, particularly for organizations with extensive C++ codebases. The Interop Initiative seeks to mitigate these challenges by facilitating smoother transitions and enabling organizations to leverage Rust's advantages without completely overhauling their existing systems.

As part of the initiative, the Rust Foundation will collaborate closely with the Rust Project Leadership Council, stakeholders and member organizations to develop a comprehensive scope of work. The collaborative effort will focus on enhancing build system integration, exploring artificial intelligence-assisted code conversion techniques and expanding upon existing interoperability frameworks. By addressing these strategic areas, the initiative aims to accelerate the adoption of Rust across the software industry and hence contribute to advancing memory safety and reducing the prevalence of software vulnerabilities.
A post on Google's security blog says they're excited to collaborate "to ensure that any additions made are suitable and address the challenges of Rust adoption that projects using C++ face. Improving memory safety across the software industry is one of the key technology challenges of our time, and we invite others across the community and industry to join us in working together to secure the open source ecosystem for everyone."

The blog post also includes this quote from Google's VP of engineering, Android security and privacy. "Based on historical vulnerability density statistics, Rust has proactively prevented hundreds of vulnerabilities from impacting the Android ecosystem. This investment aims to expand the adoption of Rust across various components of the platform."

The Register adds: Lars Bergstrom, director of Android platform tools and libraries and chair of the Rust Foundation Board, announced the grant and said that the funding will "improve the ability of Rust code to interoperate with existing legacy C++ codebases.... Integrating Rust today is possible where there is a fallback C API, but for high-performance and high-fidelity interoperability, improving the ability to work directly with C++ code is the single biggest initiative that will further the ability to adopt Rust...."

According to Bergstrom, Google's most significant increase in the use of Rust has occurred in Android, where interoperability started receiving attention in 2021, although Rust is also being deployed elsewhere.... Bergstrom said that as of mid-2023, Google had more than 1,000 developers who had committed Rust code, adding that the ad giant recently released the training material it uses. "We also have a team working on building out interoperability," he added. "We hope that this team's work on addressing challenges specific to Google's codebases will complement the industry-wide investments from this new grant we've provided to the Rust Foundation."

Google's grant matches a $1 million grant last November from Microsoft, which also committed $10 million in internal investment to make Rust a "first-class language in our engineering systems." The Google-bucks are expected to fund further interoperability efforts, along the lines of KDAB's bidirectional Rust and C++ bindings with Qt.

The world's biggest builder of recycling plants has teamed with a startup to install AI-powered systems for sorting recycling, reports the Washington Post. And now over the next few years, "The companies plan to retrofit thousands of recycling facilities around the world with computers that can analyze and identify every item that passes through a waste plant, they said Wednesday." "[S]orted" recyclables, particularly plastic, wind up contaminated with other forms of trash, according to Lokendra Pal, a professor of sustainable materials engineering at North Carolina State University... [W]aste plants don't catch everything. [AI startup] Greyparrot has already installed over 100 of its AI trash spotters in about 50 sorting facilities around the world, and [co-founder Ambarish] Mitra said as much as 30 percent of potentially recyclable material winds up getting lumped in with the trash that's headed for the landfill. Failing to recycle means companies have to make more things from scratch, including a lot of plastic from fossil fuels. Also, more waste ends up in landfills and incinerators, which belch greenhouse gases into the atmosphere and pollute their surroundings.

Mitra said putting Greyparrot's AI tools in thousands of waste plants around the world can raise the percentage of glass, plastic, metal and paper that makes it to recycling facilities. "If we can move the needle by even 5 to 10 percent, that would be a phenomenal outcome on a planetary basis for greenhouse gas emissions and environmental impact," he said. Cutting contamination would make recycled materials more valuable and raise the chances that companies would use them to make new products, according to Reck. "If the AI and the robots potentially helped to increase the quality of the recycling stream, that's huge," she said...

Greyparrot's device is, basically, a set of visual and infrared cameras hooked up to a computer, which monitors trash as it passes by on a conveyor belt and labels it under 70 categories, from loose bottle caps (not recyclable!) to books (sometimes recyclable!) to aluminum cans (recyclable!). Waste plants could connect these AI systems to sorting robots to help them separate trash from recyclables more accurately. They could also use the AI as a quality control system to measure how well they're sorting trash from recyclables. That could help plant managers tinker with their assembly lines to recover more recyclables, or verify that a bundle of recyclables is free of contaminants, which would allow them to sell for a higher price.
GreyParrot's co-founder said their trash-spotting computers "could one day help regulators crack down on companies that produce tsunamis of non-recyclable packaging," according to the article.

"The AI systems are so accurate, he said, that they can identify the brands on individual items. 'There could be insights that make them more accountable for ... the commitments they made to the public or to shareholders,' he said."

An anonymous reader quotes a report from the San Francisco Standard: California would ban all plastic shopping bags in 2026 under a new bill announced Thursday in the state Legislature. California already bans thin plastic shopping bags at grocery stores and other shops, but shoppers at checkout can purchase bags made with a thicker plastic that purportedly makes them reusable and recyclable. Democratic state Sen. Catherine Blakespear said people are not reusing or recycling those bags. She points to a state study that found the amount of plastic shopping bags trashed per person grew from 8 pounds per year in 2004 to 11 pounds per year in 2021. "It shows that the plastic bag ban that we passed in this state in 2014 did not reduce the overall use of plastic. It actually resulted in a substantial increase in plastic," Blakespear, a Democrat from Encinitas, said Thursday. "We are literally choking our planet with plastic waste."

While California's bag ban would apply statewide, it would only end up impacting about half the state's population, according to Mark Murray, lead advocate for the environmental advocacy group Californians Against Waste. That's because most of the state's major cities already ban these types of thicker plastic bags. But a state law passed in 2014 and approved by voters in a 2016 referendum bans cities from passing new laws restricting plastic bag use. If the Legislature passes this bill, it would be up to Democratic Gov. Gavin Newsom to decide whether to sign it into law. As San Francisco's mayor in 2007, Newsom signed the nation's first plastic bag ban.

Gen Z is reviving the trend of reading physical books over digital ones, with a notable increase in library visits and book purchases, as evidenced by celebrities like Kaia Gerber and Kendall Jenner promoting literature and book clubs. The Guardian reports: This week the 22-year-old model Kaia Gerber launched her own book club, Library Science. Gerber, who this month appears on the cover of British Vogue alongside her supermodel mum, Cindy Crawford, describes it as "a platform for sharing books, featuring new writers, hosting conversations with artists we admire -- and continuing to build a community of people who are as excited about literature as I am." "Books have always been the great love of my life," she added. "Reading is so sexy."

Gerber isn't alone. Last year in the UK 669m physical books were sold, the highest overall level ever recorded. Research from Nielsen BookData highlights that it is print books that gen Z favour, accounting for 80% of purchases from November 2021 to 2022. Libraries are also reporting an uptick in gen Z users who favour their quiet over noisy coffee shops. In the UK in-person visits are up 71%. While the BookTok charts -- a subsection of TikTok where avid readers post recommendations -- are regularly topped by fantasy and romance titles from authors such as Colleen Hoover, gen Z are reading a diverse range of genres. [...]

"Overall we are seeing a move towards escapism through the rise in speculative fiction, romance and fantasy, but I think it would be a mistake to homogenise gen Z and say they're reading lighter," says the author and literary agent Abigail Bergstrom. "With the oversaturation and noise of the wild west digital landscape, they are also demanding higher standards, especially when it comes to the authority and expertise of a writer on a particular subject."