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As the planet loses mild weather days because of climate change, wedding professionals are devising creative ways to keep cakes fresh and guests cool.

These devices measure blood oxygen levels and can help identify when patients are dangerously ill. But research shows they can deliver misleading results for people with darker skin.

While the U.S. has unequaled offensive cyberwar capability, experts say it is unprepared to fend off a massive cyberattack. "I see this as possibly one of the gravest intelligence battles the U.S. has ever fought, and it's a battle we're currently losing," says cyberpolicy analyst James Lewis.

Festival promoters are allowing lifesaving medication as fentanyl deaths surge, but volunteers are often left to distribute it, and more controversial forms of harm reduction aren't openly allowed.

Not just for the super fit, gravel bike racing has exploded into one of the most popular forms of biking in the U.S. Organizers have worked so that everyone feels included and welcome.

To stop Russian forces from advancing to Kyiv, the Ukrainian military blew up a dam, flooding a nearby village. Seven months later, residents are still pumping water out of yards and houses.

The women's race starts Sunday in Paris and lasts for 8 stages, ending July 31. The last multiday women's race was held in 1989.

From 2017 to 2021, Sir Mark Lowcock was the U.N.'s "relief chief," the world's most senior humanitarian official. He talks to NPR about what inspired him and why crises are getting worse.

As fentanyl deaths soar, political pressure is growing to stop Mexican cartels that smuggle the drug. Experts on drug trafficking say trying to lock down the Mexican border is an impossible goal.

The pandemic put infectious diseases doctors in the spotlight. The 'Fauci Effect' raised the number of fellowship applicants in 2020, but this year almost half of the training programs went unfilled.