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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U.S. Wildfire Fighters to Mask Up After Decades-Long Ban on Smoke Protections

The Forest Service is changing course as it faces growing pressure over firefighters who are falling ill with cancer and other smoke-related illnesses.

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Should I Get a Portable Induction Cooktop?

If you’re cooking with gas, it might help your health and the environment. Here’s why.

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Canada Wildfires Cause Poor Air Quality for Toronto, Minneapolis and New York

Wildfires burning in Canada were causing unhealthy air quality across parts of North America on Monday.

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What to Know About Legionnaires’ Disease, Which Has Sickened 22 in N.Y.C.

The cases are most likely linked to a cooling tower in central Harlem, health officials said.

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F.D.A. Approves Juul Vapes After Yearslong Delay

The company was accused of marketing its products to teenagers, causing a surge in use.

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Do I Really Need an Air Purifier?

We asked the experts how to decide.

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Many Older People Embrace Vaccines. Research Is Proving Them Right.

Newer formulations are even more effective at preventing illnesses that commonly afflict seniors — perhaps even dementia.

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Measles Surge in Southwest Is Now the Largest Single Outbreak Since 2000

Growing case numbers suggest that national total will surpass that seen during the last large outbreak in 2019.

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Sandstorm Turns Iraq’s Skies Orange and Sends Thousands to Hospitals

Climate experts say such storms are becoming more frequent and severe in the country. This was its worst of the year so far.

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