fine particulate matter

Pollution Control as Climate Policy

Tightening air quality standards will also reduce carbon emissions.

The Biden Administration is slowly grinding away at an important regulatory task: reconsidering the air quality standards for particulates and ozone. Setting those standards is an arduous and time-consuming process, requiring consideration of reams of technical data. For instance, a preliminary staff report on fine particulates (PM2.5) is over 600 pages long. When the process …

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Get Ready for Phase 2 of the Deregulation Wars

Air quality standards are next on the chopping block.

The first phase of Trump’s regulatory rollbacks has been directed against Obama’s climate change regulations. Those deregulatory actions will be finalized soon. What happens next will be in the hands of the courts. But the Trump EPA is now beginning a new phase in its attack on environmental regulation. Having tried to eliminate climate rregulation, …

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Some Overdue Environmental Justice In Time for Shavuot

The Jewish festival of Shavuot, which begins at sundown this evening, commemorates the Israelites’ receiving of the Torah at Mt. Sinai. Shavuot is thus the paradigmatic lawyers’ holiday given its focus on law and justice. This connects nicely with the other two great pilgrimage holidays found in the Jewish Bible, giving us a trinity (so …

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Reflections on “Yes they can control the weather.”

Marjorie Taylor Greene is wildly wrong about government scientists controlling hurricanes. There is a rich history of weather modification experiments that make that false claim more dangerous.

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California’s lawsuit against ExxonMobil for lying about plastic recycling is the latest example of the state using old-fashioned legal tools to address more modern harms.

The Election, Vehicle Emissions, and State Climate Plans

If the California car waiver survives a possible Trump presidency, we may have the overruling of Chevron to thank.

How to Make Trees Worth More Standing Than Cut Down

The Katoomba Group is celebrating 25 years of pioneering new approaches to realizing value in nature. Here’s what we’ve learned.

Climate, Energy, and Environment on the Ballot

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Model Uncertainty in Politics and Climate Policy

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Still Crazy After All These Years

There’s been an alarming growth of conspiracy theories, often antisemitic ones, to explain extreme weather events.

We Need a Circular Economy for EV Batteries

California got close to making suppliers ensure EV batteries are managed responsibly at end of life. Here’s why 2025 should be the year California creates a circular economy for EV batteries.

The Dangerous Embrace of Convenient Narratives Over Inconvenient Truths

As it turns out, Nature doesn’t care what stories you post on social media or spin on TV.

New Environmental Laws Focus on Public Health

Many of the environmental-focused bills that the governor signed this year involve ways to alleviate the health disparities faced by frontline communities.