What the Air You Breathe May Be Doing to Your Brain

Studies increasingly find links between higher concentrations of certain pollutants and the prevalence of dementia.

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An E.P.A. Plan to Kill a Major Climate Rule Is Worrying Business Leaders

Some carmakers and energy executives say the plan would trigger costly litigation and spur individual states to create a patchwork of tighter rules.

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Trump’s Climate Rollback Takes on a Key Scientific Finding

The federal government’s ability to regulate greenhouse gases depends on a 2009 scientific determination. The Trump administration wants to repeal it.

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Wildfire Smoke Will Kill Thousands More by 2050, Study Finds

Pollution from fires, intensified by rising temperatures, is on track to become one of America’s deadliest climate disasters.

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Trump’s E.P.A. Filing Fewer Lawsuits Against Polluters

In its first six months, the Trump administration has filed 11 civil cases against polluters compared with the Biden administration’s 30.

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How Trump Is Transforming the U.S. Government’s Environmental Role

The E.P.A. said this week it would revoke its own ability to fight climate change. It’s the latest move in an extraordinary pivot away from science-based protections.

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Coal Plants Emailed the E.P.A. to Avoid Clean-Air Rules

Sites including at least 15 coal plants sought exemptions from environmental rules using a new Trump administration system to fast-track requests, documents show.

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E.P.A. Is Said to Draft a Plan to End Its Ability to Fight Climate Change

According to two people familiar with the draft, it would eliminate the bedrock scientific finding that greenhouse-gas emissions threaten human life by dangerously warming the planet.

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Justices Let Fuel Producers Challenge California’s Limits on Car Emissions

The 7-to-2 decision stressed that it did not address the merits of the dispute, and concerned only whether the producers had standing to sue.

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Trump Blocks California E.V. Rules in Latest Move to Rein In the State

California leaders said the state intends to challenge the move in court, and to find new ways to move drivers toward electric vehicles.

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