Richard Harris

Climate change is gradually altering the fish that end up on ice in seafood counters around the world, according to a new study.

"The composition of the [global] fish catch includes more and more fish from the warmer areas, and cold-water fish are getting more rare, because the temperatures are ...

Earth's atmosphere is entering a new era. A mountaintop research station that has been tracking carbon dioxide for more than 50 years says the level of that gas in our air has reached a milestone: 400 parts per million.

That number is one of the clearest measures of how human ...

It's easy to feel dispirited about climate change because the challenge of dealing with it seems so overwhelming. But Miguel Modestino is actually excited about the challenge. He's part of a large team hoping to make an artificial leaf — a device that would make motor fuel from sunlight ...

Most scientists find a topic that interests them and keep digging deeper and deeper into the details. But Ken Caldeira takes the opposite approach in search for solutions to climate change. He goes after the big questions, and leaves the details to others.

We caught up with Caldeira on ...

NPR Science Correspondent Richard Harris traveled to Australia's Great Barrier Reef to find out how the coral reefs are coping with increased water temperature and increasing ocean acidity, brought about by our burning of fossil fuels. Day 5: A return to shore finds that people prefer cars to corals.

It's ...

NPR Science Correspondent Richard Harris traveled to Australia's Great Barrier Reef to find out how the coral reefs are coping with increased water temperature and increasing ocean acidity, brought about by our burning of fossil fuels. Day 4: Richard catches up with one of the gurus of climate science out ...

NPR Science Correspondent Richard Harris traveled to Australia's Great Barrier Reef to find out how the coral reefs are coping with increased water temperature and increasing ocean acidity, brought about by our burning of fossil fuels. Day 3: Waiting for a boat to the next island, Richard meets some rowdy ...

NPR Science Correspondent Richard Harris traveled to Australia's Great Barrier Reef to find out how the coral reefs are coping with increased water temperature and increasing ocean acidity, brought about by our burning of fossil fuels. Day 2: The good news is life could get better for seaweed.

Picture a ...

NPR Science Correspondent Richard Harris traveled to Australia's Great Barrier Reef to find out how the coral reefs are coping with increased water temperature and increasing ocean acidity, brought about by our burning of fossil fuels. Day 1: Richard gets a hefty dose of bad news.

I've seen the future, ...

Diplomats in Doha, Qatar, are working late into the night to hammer out a deal in the 18th round of U.N. climate talks. Expectations are low as the talks are part of a multiyear proce...

The good news: Sea level has risen by just a half-inch in the past 20 years as a result of shrinking ice. The bad news: The melting is now speeding up. Over the next century, this cou...

First came the news that Arctic sea ice is in sharp decline this year. Now, research indicates that springtime snow is melting away even faster than the ice. And that has profound implications for the Earth's climate.

Though summer melting is a yearly occurrence in the Arctic sea, this year set a new benchmark: Three-fourths of the ice melted away. Scientists say the effects of this unprecedented m...

More than 20,000 high-temperature records have been broken so far this year in the United States. It's especially bad in urban areas, where cities are heating up about twice as fast a...