EPA’s new auto emissions standard will speed the transition to cleaner cars, while also addressing consumer and industry concerns
The new rule isn’t a mandate for electric vehicles, but it will sharply increase their market share over the coming decade.
March 22, 2024 • ~8 min
High-energy laser weapons: A defense expert explains how they work and what they are used for
Militaries around the world are rapidly developing science fiction-like laser weapons, motivated in part by the growing threat from swarms of drones.
March 7, 2024 • ~9 min
E-bike incentives are a costly way to cut carbon emissions, but they also promote health, equity and cleaner air
Many incentive programs promote e-bike use, but they aren’t necessarily targeting the right people for the right reasons.
Feb. 27, 2024 • ~9 min
EPA has tightened its target for deadly particle pollution − states need more tools to reach it
Reducing particle pollution can save thousands of lives, but states need more data to inform better controls. An atmospheric scientist explains what data and actions are needed.
Feb. 22, 2024 • ~9 min
Heart attacks, cancer, dementia, premature deaths: 4 essential reads on the health effects driving EPA’s new fine particle air pollution standard
On Feb. 7, 2024, the EPA strengthened the federal limit for annual levels of fine particulate air pollution, or PM2.5. Many serious health effects have been linked to PM2.5 exposure.
Feb. 8, 2024 • ~8 min
Biden’s ‘hard look’ at liquefied natural gas exports raises a critical question: How does natural gas fit with US climate goals?
The US, a minor liquefied natural gas supplier a decade ago, now is the world’s top source. That’s good for energy security, but bad for Earth’s climate. An energy scholar explains the trade-offs.
Feb. 7, 2024 • ~8 min
How can I get ice off my car? An engineer who studies airborne particles shares some quick and easy techniques
When you’re running late in the winter, you don’t want to have to spend time scraping frost off your windshield. Try some expert-recommended techniques instead.
Feb. 2, 2024 • ~5 min
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