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Artificial intelligence is an electricity hog. Google says its total greenhouse gas emissions climbed nearly 50% over five years, mostly due to electricity that powers AI data centers.

The president's highly unusual announcement underscores the Trump administration's desire to take control over U.S. businesses.

The company said China and other nations are covertly trying to use chatbots to influence opinion around the world. In one case, operatives also used the tools to write internal performance reports.

The Upper Midwest is grappling with devastating river flooding after record-breaking rain. Climate change makes heavy rain and severe floods more frequent in that part of the country.

Paul Nicklen has spent decades documenting the Arctic and the Antarctic. He often finds himself in frigid waters, just a camera's length away from deadly predators. Originally broadcast June 6, 2017.

Each year, Americans waste 33 million tons of food. Dana Gunders, a scientist at the Natural Resources Defense Council, and author Jonathan Bloom discuss the economic and environmental impacts of food waste, and what can be done to fight the growing problem.

The former New York Times executive editor and author of Merchants of Truth tells NPR's Michel Martin: "I will do everything within my power to correct anything that is imperfect in my book."

Mongolia's herders are accustomed to cold, but the extreme conditions of the country's terrible winters, known as dzuds, killed countless livestock and livelihoods. Herders have had to adapt.

Dr. Peter Hotez is part of a team working to develop a low-cost COVID vaccine that could be distributed globally. "Vaccines are coming," he says. "We have to get everybody through to the other side."

President Trump will give guidance to governors on reopening states. First-time claims for jobless benefits will be announced. And in India, fears contact-tracing has crossed into discrimination.