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There are rumblings that U.S. health officials may start encouraging Americans to wear face masks to cut down on asymptomatic spread. But with continued shortages, it's not clear how we'd do that.

When President Trump declared a national emergency on the Southern border on Friday, he claimed the move was routine — even as he acknowledged the administration is likely to face legal challenges.

There are rumblings that U.S. health officials may start encouraging Americans to wear face masks to cut down on asymptomatic spread. But with continued shortages, it's not clear how we'd do that.

Admission to a hospital requires a diagnosis of coronavirus. But screening kits are in short supply and hospitals are short of beds.

To slow climate change, we need to lower emissions and remove carbon from the atmosphere. Chemical engineer Jennifer Wilcox says the technology is there, and we need to scale it.

For decades, scientists have observed an extraordinarily positive side effect among children who received the measles vaccine. Researchers are now finding that other vaccines confer added protections.

A pivotal retirement and a new conservative majority could give the state legislatures a green light for even more partisanship when it comes to drawing political boundaries.

The urinals are not at all subtle. They're bright red and placed in heavily trafficked areas — for example, directly next to the Seine near the Notre Dame Cathedral.

Nazarbayev is the only president Kazakhstan has ever known. He first rose to authority as a Communist Party official — and he's been accused of human rights abuses.

Despite public health warnings about benzene contamination in the town's water supply, some Paradise residents say they have no choice but to return.