Classrooms can be particularly vulnerable amid climate change, as the hottest times of the year increasingly overlap with the academic calendar.

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Innovative systems to keep ships from hitting North Atlantic right whales are coming into use. The Trump administration is weighing whether they can replace a bedrock protection.

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This month, a North Dakota court barred Greenpeace from saying what it wanted in a European court, an unusual move. The environmental group says it is forging ahead.

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Robert F. Kennedy Jr.’s MAHA movement has reshaped the public health debate. But if the coalition behind it begins to fracture, what comes next?

Readers largely disagree with a guest essay that argued that Democrats should not focus on it. Also: Violence against Latinos; school closings.

Trump is fighting the world’s stupidest culture war.

The Times unearthed memos that signaled a major shift in the court’s operations, in a decision that critics say was rushed and flawed.