Some think of them as a "quick fix" for getting out of coronavirus quarantine. But there's still a lot we don't know about Covid-19 immunity.

As the state’s coronavirus curve rises, Ron DeSantis sticks up for anti-science preachers—and keeps churches open for Easter Sunday.

Amid a shortage of ventilators, some are arguing these machines might not even be needed. That’s a vast oversimplification.

The coronavirus and the frightening mystery of an unseen enemy

After bungling containment, the Trump administration hopes for a fast-tracked fix. But compressing trials comes with its own hazards.

Either three or five degrees of warming would be catastrophic—and in both cases, we already know what we have to do.

Jay Inslee says the next four years "is our last chance ... to do something about it." Is he right?

From exploration to Cold War militarization, how the Arctic became the focus of the climate crisis.

More than 50,000 Americans unwittingly live within 650 feet of natural gas wells, which are poorly regulated and can leak or explode.

A new report makes clear where much of the blame lies for our warming planet.

They, not climate scientists or activists, are stoking fear with exaggerated rhetoric and outright lies.

This glimpse of the celestial phenomenon is cause for wonder in a light-polluted world saturated with disturbing images.

The idea that liberal democracies shielded science from politics was always flawed.

The EPA chief's latest argument against fighting climate change is astonishingly foolish—but it's exactly what most of us want to hear.

A new book argues that life may be spread more widely through the universe than we think.

Linguists are studying how climate-related migration is affecting regional American dialects.

Weeks after Hurricane Michael caught Florida off guard, another unexpected monster is heading toward Mexico.

A frightening report on climate change has some experts pondering the perils of optimism about the future.

Liberals are baffled about the conservative female support for an alleged sexual assaulter. Social scientists are not.