While carbon dioxide gets the lion's share of attention when it comes to global warming, there are other factors at play. Methane is responsible for about 30 percent of the rise in global temperatures since the Industrial Revolution, according to the International Energy Agency. About 40 percent of methane emissions from human activity stem from the energy sector. Identifying and mitigating these emissions is said to be one of the most critical actions we can take in the short term to combat climate change.

To that end, Google and the Environmental Defense Fund (EDF) have once again teamed up to tackle the issue. The pair previously mapped methane leaks in major cities using sensors on Street View cars. This time they're using a blend of satellite imagery and AI.

The EDF and its partners have developed a satellite that's set to launch on a SpaceX Falcon 9 rocket in early March. While there have been other satellite-based monitoring efforts, MethaneSAT is slated to provide the most comprehensive picture yet of methane emissions across the planet.

The satellite will orbit the Earth 15 times a day at an altitude of over 350 miles, and focus on measuring methane levels in the top oil- and gas-producing regions. It will be capable of imaging large emissions from a single source as well as smaller sources of methane spread across wider areas.

EDF and its partners developed Google Cloud-powered algorithms to calculate emissions in certain places and to track them over time. Artificial intelligence will also be employed to pinpoint oil and gas infrastructure such as storage containers and pump jacks, much like Google uses AI to detect sidewalks, street signs and road names in satellite images for Maps.

Combining the methane map with one showing oil and gas infrastructure is expected to provide a clearer picture of where emissions are stemming from. That should give energy companies actionable information to help them stop leaks.

Insights from the project will be publicly available on the satellite's website and Google Earth Engine later this year. "By making MethaneSAT datasets available on Earth Engine, which has over 100,000 monthly active users, it’s easier for users to detect trends and understand correlations between human activities and environmental impact," Yael Maguire, Google's vice president and general manager of Geo Developer and Sustainability, wrote in a blog post. Earth Engine users will be able to match the methane data against other maps, such as those showing forests, regional borders and water. They'll also be able to view methane emissions over time.

The Biden administration recently announced that it would be requiring large cryptocurrency mining operations to report electricity usage, via a press release from The Energy Information Administration. This follows concerns that the industry could pose a threat to the nation’s electricity grids and hasten the impacts of climate change.

To that end, the EIA has targeted 137 “identified commercial cryptocurrency miners” working in the US. These operations account for around 2.3 percent of national energy usage. This breaks down to 90 terawatt-hours per year, which is more than Finland, Belgium and Chile use in that same time period. The world’s crypto miners used as much electricity in 2023 as the entire country of Australia. That's a whole lot of energy for Shiba Inu-branded internet money with no practical application.

The data collection started this week. The survey aims to get a sense of the industry’s growing demands and which parts of the country are the biggest crypto hotbeds, so as to refine policy later on. The EIA has already discovered that nearly 38 percent of all bitcoin is mined in the US, which is up from 3.4 percent in 2020.

“As cryptocurrency mining has increased in the United States, concerns have grown about the energy-intensive nature of the business and its effects on the US electric power industry,” the EIA said in a report that offered further details behind the survey.

The EIA went on to note that large crypto mining operations could strain the electricity grid during peak periods, force higher energy prices for average consumers and negatively impact energy-related carbon dioxide emissions. Most of the electricity generated throughout the world comes from burning fossil fuels, and that process releases carbon dioxide into the atmosphere.

The clean energy advocacy group RMI estimates that US cryptocurrency mines release 25 to 50 million tons of CO2 into the atmosphere every year. That’s around the same amount as the yearly diesel emissions from the US railroad industry. 

The biggest mining operations in the country are scattered throughout 21 states, but largely clustered in Texas, Georgia and New York. This is especially dangerous for Texans, as the state’s energy grid is already notoriously fragile. Ben Hertz-Shargel, who leads energy research consultancy firm Wood Mackenzie, told Ars Technica that crypto mining operations are not only placing a higher burden on the state’s energy grid, but increasing prices for consumers. 

Energy costs in Texas are based on real-time demand, so Hertz-Shargel estimates that state residents see an increase of 4.7 percent in their monthly utility bills due to cryptocurrency mining. He also said that mining operations tend to open up shop next to pre-existing renewable energy facilities, which draws clean power away from nearby homes and businesses.

It’s not all doom and gloom in the crypto world. Back in 2022, Ethereum announced a software update to make mining ether more eco-friendly. The Ethereum Foundation claims this reduces the carbon emissions of its mining operations by more than 99 percent. However, ether accounts for just 17 percent of the global cryptocurrency market share.

Tesla and the 25 California counties that sued the automaker for mishandling hazardous waste at its facilities around the state have already reached an agreement just a few days after the lawsuit was filed. The court has ordered the automaker to pay $1.5 million as part of the settlement, which also includes hiring a third party to conduct annual waste audits of its trash containers for five years. These auditors will be taking a close look at the company's trash containers to check for hazardous materials. 

The counties that sued Tesla, which include Los Angeles and San Francisco, accused the company of dumping improperly labeled materials at transfer centers and landfills that were "not permitted to accept hazardous waste." Based on the complaint filed in San Joaquin County, Tesla was illegally disposing the waste it generated manufacturing and servicing its vehicles. 

Undercover investigators from the environmental division at the San Francisco District Attorney's Office were the first to find evidence of Tesla's illegal activities back in 2018. They found trash containers at the company's service centers containing materials, such as aerosols, antifreeze, lubricating oils, brake cleaners, lead acid batteries, aerosols, antifreeze, waste solvents, electronic waste and waste paint when they weren't supposed to. Investigators from other California counties' District Attorney's offices conducted their own investigations and found similar unlawful disposals. The Alameda country authorities who looked into its Fremont factory activities, for instance, discovered illegal disposal of waste containing copper and primer-contaminated debris. 

Tesla reached a settlement with the Environmental Protection Agency over its handling of hazardous materials back in 2019 and had to agree to properly manage waste at its Fremont plant in addition to paying a $31,000 fine. The automaker had also taken steps to screen its trash containers for hazardous waste before taking them to the landfill after being notified of the issue. But as District Attorney Brooke Jenkins said, "today's settlement against [the company] serves to provide a cleaner environment for citizens throughout the state by preventing the contamination of [their] precious natural resources when hazardous waste is mismanaged and unlawfully disposed." By having a third party regularly check whether Tesla continues to comply with the agreement, authorities can ensure that the company isn't illegally dumping harmful materials across the state over the next few years. 

Tesla is facing a lawsuit from 25 California counties accusing it of mishandling hazardous waste at facilities around the state, according to a complaint filed in San Joaquin County Superior Court. The lawsuit, which seeks civil penalties and an injunction forcing Tesla to correctly handle waste, was filed after months of negotiations reportedly broke down. Civil penalties could amount to as much as $70,000 per violation per day, Reuters reported.

Los Angeles, San Francisco and other counties accused Tesla of improperly labeling and disposing of materials at transfer stations or landfills "not permitted to accept hazardous waste." Waste materials include "lubricating oils, brake fluids, lead acid batteries, aerosols, antifreeze, cleaning fluids, propane, paint, acetone, liquified petroleum gas, adhesives and diesel fuel," the complaint states. It adds that Tesla "continues to do so at and/or from its facilities."

Tesla revealed that it was being probed by California district attorneys over its waste management handling in a 2022 Securities and Exchange Commission (SEC) filing. It stated at the time that it "had implemented various remedial measures, including conducting training and audits and enhancements to its site waste management programs," according to TechCrunch. It said in October 2023 that it was in settlement talks with District Attorneys across California, but those apparently failed to bear fruit.

Tesla has previously faced legal repercussions over its handling of waste. In 2019, it reached a settlement with the Environmental Protection Agency over federal hazardous materials violations. As part of that, Tesla agreed to properly manage waste at its Fremont plant and pay a $31,000 fine. 

EVs, like me after the holidays, have a tendency to bloat at the slightest provocation, which is why I can’t fit into those size 34 jeans. The big issue for electric cars is heavy batteries force cars to grow in size to accommodate them. Of course, the heavier the load, the more power is needed to keep going, forcing you into a vicious cycle. Even a small city car like the original Smart has, in its latest electric version, grown into a grotesque parody of its predecessor. Which is why there’s a lot of hope riding on truly small EVs, like Squad Mobility’s solar-powered car that’s designed not to grow too big to fit inside a city.

The company was founded by Chris Klok and Robert Hoevers, who met while working on the Lightyear solar car. Klok was chief vehicle engineer of that project, while Hoevers was previously involved with NIO’s Formula E team. But they left Lightyear to help develop a small, solar-powered car that would offer affordable and clean mobility for dense cities. And while it’s just got a few prototypes to show off, like the one here at CES 2024, it’s expecting to begin production in 2025. Even better, many of its existing pre-order customers are based in the US, given the need for a car like this in those communities that exclusively rely on golf carts to get around.

The Solar City car has a 250Wp panel in its roof, which is designed to generate enough power for a few short trips each day. The company says that, in Las Vegas, you could expect to travel for around 13 miles purely from the energy collected from the panel. (You can plug it in to an outlet if you really need to.) With a kerb weight of 794 pounds, it’s light and efficient enough to get you around short distances without much stress. Of course, the speed is limited — and you’ll only get around 25mph out of the 4kW motor, but if you live in a big city and just need to get to work, or pick up some groceries, that’s probably all you need.

You might expect the car to be poky, but the high roofline and low floor means it’s surprisingly comfortable. The prototype here has some quirks — like acceleration and brake pedals that are a bit too close to the seat — which will be eliminated in the production version. There’s even a rear load space big enough for a suitcase or a couple of decently-sized bags, and the prominent tyres mean you could even tackle rough terrain in short doses. The fact it measures just 6.6 feet long means you can park it sideways and it’ll take up the same amount of room as most cars, too.

We’re still a year out before we’ll see the production model of this car, but there are plenty of reasons to be hopeful. The company expects the retail price to be $6,250 excluding sales tax, making it ideal as a city runaround or second (or third) car. That said, the figure does exclude the cost of the doors which, like AC, count as an optional extra.

We're reporting live from CES 2024 in Las Vegas from January 6-12. Keep up with all the latest news from the show here.

Toronto Zoo disclosed a cyberattack on Monday, after first detecting it last week and working to mitigate the impact. The zoo reassured the public that the attack did not impact animal wellbeing and support staff, but it was still determining possible consequences for human visitors. 

Canada's largest zoo is investigating the attacker's motives and possible damage to its systems. It's unclear if any guest, member, donor or employee records were impacted. Toronto Zoo did, however, say it does not store any credit card information, so past visitors wouldn't have to worry about that. The zoo remains open for normal operations, and its website is still up and running. 

"Unfortunately, these incidents are becoming more and more common and we are grateful we took steps over the past few years to upgrade our technology infrastructure," Toronto Zoo said in a statement. It contacted the city, local police and third-party experts to help with its investigations.

But questions remain, like why would attackers target a zoo? Money usually motivates hackers, and the zoo does bring in a lot. Besides millions in donations for various projects and government grants, it also generates revenue from its 750,000 visitors each year. 

Zoos have been a target of attacks in the past, too. A cyberattack hit ZooTampa in July 2023 and the Louisville Zoo in 2022, allegedly targeting visitors' personal information. In 2015, two dozen zoos in the United States faced a coordinated attack against a vendor going after visitor credit and debit card information. 

Firefly Green Fuels, a UK-based company, has developed a new form of jet fuel that is entirely fossil-free and made from human waste. The company worked with experts at Cranfield University to confirm that the fuel they developed had a 90 percent lower carbon footprint than what is used in aviation today, according to the BBC. Tests by independent regulators validated that what Firefly Green Fuels has developed is nearly identical to standard A1 jet fuel.

In 2021, the company received a £2 million grant from the Department of Transport to continue developing its sustainable aviation fuel. Although it’s not yet available commercially, the company says it is on track to bringing its fuel to the global market and it will have its first commercial plant operating within 5 years. The company has already inked a partnership with the budget airline Wizz Air — the name of the company and the source of its potential combustibles could scarcely be a more perfect pairing — to supply it with fuel starting in 2028.

It currently sources its waste from water companies in the UK and takes the refined sewage through a process called hydrothermal liquefaction, which converts the liquid waste into a sludge or crude oil. Solid by-products can also be made into crop fertilizer. The company claims that the carbon intensity of the whole process — which measures how much carbon is needed to produce energy — is 7.97 grams of carbon dioxide per megajoule (gCO²e/MJ). Comparatively, the ICCT says carbon intensity recorded for jet fuel ranges from 85 to 95 gCO²e/MJ.

Organic matter, as the company points out, takes millions of years to develop into the fossil fuels that power cars and planes. Firefly’s solution makes it possible to generate fuel in a matter of days — and more importantly, human waste is a widely available resource. It's unclear if sustainable jet fuel will be more or less expensive than what is currently available. The company could not immediately be reached for comment. However, in a statement, the company’s CEO James Hygate made mention that using human waste is a “cheap and abundant feedstock [that] will never run out.”

The achievement of carbon neutrality in our airspaces has been a longtime goal for regulators and leaders in Europe and the US. While EVs have made headway in the car industry, it might be a while before we see battery powered commercial jets. So in the meantime, solutions for creating more environmentally-friendly jet fuel are welcome.

Volkswagen is the latest automaker to embrace Tesla's North American Charging Standard (NACS) in electric vehicles. Subsidiaries Audi, Porsche and Scout Motors will implement the NACS in their North American EVs starting in 2025 as well.

The VW brands are also looking into providing owners of existing models with adapters so they can tap into Tesla's Supercharger network. There are more than 15,000 Supercharger stations in North America. VW's EVs will be able to charge at those in addition to more than 3,800 DC fast charging outlets run by Electrify America and Electrify Canada.

With so many carmakers adopting the NACS, Tesla's charging solution is becoming a de facto standard. GM, Volvo, Polestar, Mercedes, Honda, BMW, Lucid and others have all pledged to support NACS charging within the next couple of years.

On the other hand, ChargePoint started rolling out support for the NACS across its EV charging network in October. Electrify America plans to offer the NACS connector at its stations by 2025 as well.

Researchers at the AI startup Hugging Face collaborated with Carnegie Mellon University and discovered that generating an image using artificial intelligence, whether it's to create stock images or realistic ID photos, has a carbon footprint equivalent to charging a smartphone. However, researchers discern that generating text, whether it be to create a conversation with a chatbot or clean up an essay, requires much less energy than generating photos. The researchers quantify that AI-generated text takes up as much energy as charging a smartphone to only 16 percent of a full charge.

The study didn't just look into image and text generation by machine learning programs. The researchers examined a total of 13 tasks, ranging from summarization to text classification, and measured the amount of carbon dioxide produced per every 1000 grams. For the sake of keeping the study fair and the datasets diverse, the researchers said they ran the experiments on 88 different models using 30 datasets. For each task, the researchers ran 1,000 prompts while gathering the “carbon code” to measure both the energy consumed and the carbon emitted during an exchange.

Hugging Face/Carnegie Mellon

The findings highlight that the most energy-intensive tasks are those that ask an AI model to generate new content, whether it be text generation, summarization, image captioning, or image generation. Image generation ranked highest in the amount of emissions it produced and text classification was classified as the least energy-intensive task.

The researchers urge machine learning scientists and practitioners to “practice transparency regarding the nature and impacts of their models, to enable better understanding of their environmental impacts.” While the energy consumption associated with charging a smartphone per AI image generated may not seem dire, the volume of emissions can easily stack up when considering how popular and public AI models have become. Take ChatGPT for instance – the authors of the study point out that at its peak, OpenAI’s chatbot had upward of 10 million users per day and 100 million monthly active users today.

Consumer Reports has published an extensive ranking of vehicle reliability, and the results pour cold water on the dependability of EVs and plug-in hybrids. The survey says electric vehicles suffer from 79 percent more maintenance issues than gas- or diesel-powered ones, while plug-in hybrids have 146 percent more problems. The troubles portray the industry’s growing pains with the relatively new technology as the planet sets record temperatures, and scientists warn of rapidly approaching deadlines to thwart global climate catastrophe.

The survey polled CR’s members about issues with their rides from the past year, gathering data on 330,000 vehicles. The publication’s data included models from 2000 to 2023, alongside a few (early launched) 2024 models. CR studied 20 “trouble areas,” including relatively minor issues like squeaky brakes or a broken interior trim and more problematic ones related to the transmission, engine or EV battery. The number of potential trouble areas varies by type: internal combustion engine (ICE) vehicles have 17, EVs have 12, traditional hybrids have 19 and plug-in hybrids have all 20.

The publication combined the data with its own track testing, owner satisfaction survey results and safety info. It then averaged it to assign each brand a numerical score (out of 100).

Lexus

Non-plugin hybrids scored well, with the survey indicating they suffer from 26 percent fewer issues than gas- and diesel-powered vehicles. CR highlighted the most reliable brands in that space, including the Lexus’ UX and NX Hybrid and Toyota’s Camry Hybrid, Highlander Hybrid and RAV4 Hybrid.

If only plug-in hybrids (PHEV) could enjoy those ratings. Instead, their longer list of trouble spots led to 146 percent more problems than traditional gas-powered vehicles. Lowlights include the Chrysler Pacifica, which scored an abysmal 14 out of 100, and Audi Q5. However, several PHEVs defied the category’s expectations, including “standouts” like the Toyota RAV4 Prime and Kia Sportage. Several others, including the BMW X5, Hyundai Tucson and Ford Escape, scored “average” in reliability.

Fully electric cars and SUVs, the vehicles many automakers aim to fill their dealership lots with by 2030, have mediocre average scores: 44 and 43, respectively. Electric pickups, the newest technology in the bunch, perhaps unsurprisingly scored worse with an average of 30.

Lexus came out on top among EV brands. All but one of its models scored above average or better in CR’s ratings. And the lone exception, the NX, still had an average score. Toyota also did well, including the 4Runner SUV, which CR describes as “among the most reliable models in the survey.” However, its electric Tundra pickup scored poorly. Other EVs with above-average scores include Acura’s RDX and TLX.

Photo by Roberto Baldwin / Engadget

Once practically synonymous with electric vehicles, Tesla had overall scores in the middle of the pack (alongside brands like Chevrolet, Buick, Ram, Cadillac and Dodge). CR says the Elon Musk-led company’s EV powertrains tend to fare better than those from traditional automakers. However, Ars Technica notes the company’s reliability scores struggled more with things like bodywork, paint / trim and climate systems.

Regionally speaking, Asian automakers enjoyed the highest average scores in the survey at a healthy 63. European companies were second with an average of 46, while US brands slumped with a somewhat disappointing score of 39.