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NPR's Ari Shapiro talks with Michael Regan, administrator for the Environmental Protection Agency, about the response after the train derailment in East Palestine, Ohio.

The American oil company Occidental Petroleum is building machines to suck carbon dioxide from the atmosphere and inject it underground. Is the technology meant to save the planet or the oil industry?

China has been sending ships and planes to encircle Taiwan and mounting more sophisticated military drills simulating a blockade of the island.

The White House said it’s fast-tracking the delivery of Patriot air defense systems to Ukraine. That sense of urgency fits the state of the battlefield, as a new Russian advance tests Ukraine.

Oregonians are bumping up their air conditioning units or heat pumps to find relief from the triple-digit heat and keep cool. But that extra electricity use can cause problems for the power grid.

At least 12 people were killed and dozens injured in strikes that hit more than 30 cities and villages across Ukraine.

Air traffic controllers are facing a staffing shortage and the government shutdown is making it worse. And, former FBI Director James Comey appears in court today to face felony charges.

Some flights are less than 100 miles, and they're the backbone of the U.S. air system, linking small towns and big cities. But short routes were in decline even before jet fuel costs spiked.

John Brown's violent campaign against slavery — punctuated by the dramatic 1859 raid at Harper's Ferry, Va. — made him a divisive figure, then and now. A new biography by David Reynolds examines the abolitionist's life and his cultural impact.

In his new book, Accessory to War, the astrophysicist argues that people who work in his field are often complicit to military development — despite being overwhelmingly liberal and anti-war.