Christopher Joyce

Christopher Joyce is a correspondent on the science desk at NPR. His stories can be heard on all of NPR's news programs, including NPR's Morning Edition, All Things Considered, and Weekend Edition.

Joyce seeks out stories in some of the world's most inaccessible places. He has reported from remote villages in the Amazon and Central American rainforests, Tibetan outposts in the mountains of western China, and the bottom of an abandoned copper mine in Michigan's Upper Peninsula. Over the course of his career, Joyce has written stories about volcanoes, hurricanes, human evolution, tagging giant blue-fin tuna, climate change, wars in Kosovo and Iraq and the artificial insemination of an African elephant.

For several years, Joyce was an editor and correspondent for NPR's Radio Expeditions, a documentary program on natural history and disappearing cultures produced in collaboration with the National Geographic Society that was heard frequently on Morning Edition.

Joyce came to NPR in 1993 as a part-time editor while finishing a book about tropical rainforests and, as he says, "I just fell in love with radio." For two years, Joyce worked on NPR's national desk and was responsible for NPR's Western coverage. But his interest in science and technology soon launched him into parallel work on NPR's science desk.

In addition, Joyce has written two non-fiction books on scientific topics for the popular market: Witnesses from the Grave: The Stories Bones Tell (with co-author Eric Stover); and Earthly Goods: Medicine-Hunting in the Rainforest.

Before coming to NPR, Joyce worked for ten years as the U.S. correspondent and editor for the British weekly magazine New Scientist.

Joyce's stories on forensic investigations into the massacres in Kosovo and Bosnia were part of NPR's war coverage that won a 1999 Overseas Press Club award. He was part of the Radio Expeditions reporting and editing team that won the 2001 Alfred I. duPont-Columbia University journalism award and the 2001 Sigma Delta Chi award from the Society of Professional Journalists. Joyce won the 2001 American Association for the Advancement of Science excellence in journalism award.

A stone tool found in the sand has always been considered the handiwork of early humans and their ancestors. But a remarkable discovery in a Brazilian forest suggests that might not be so.

Scientists saw a group of capuchin monkeys making stone flakes, an important type of early tool. It's not clear the monkeys knew what they were making, but nonetheless, it might prompt researchers to be more cautious when they come across ancient sites where similar tools are usually attributed to early humans.

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The floods that hit Louisiana last month were caused by rainfall that was unlike anything seen there in centuries. Most of the southern part of the state was drenched with up to 2 or 3 inches in an hour. A total of 31 inches fell just northeast of Baton Rouge in about three days; 20 parishes were declared federal disaster areas.

Climate scientists and flood managers suspect there could more like that to come — in Louisiana and in other parts of the country.

Tropical Storm Colin ripped across the Gulf of Mexico in June and hit the coast of southwest Florida with 60-mile-an-hour winds. Before it arrived, a team from the U.S. Geological Survey used a new computer model to predict how far inland the waves would invade. When the storm hit, the USGS sent Joe Long out to film it.

When scientists tallied the temperature readings from around the world last month, this is what they discovered:

"July, 2016 was the warmest month we have observed in our period of record that dates back to 1880," says Jake Crouch, a climate scientist at the National Oceanic and Atmospheric Administration.

And July wasn't a freak occurrence, he notes. The past 10 years have seen numerous high temperature records.

A study of drinking water supplies throughout the U.S. shows that numerous sources are contaminated with firefighting chemicals.

A team of scientists examined government data from thousands of public drinking water supplies. The water samples had been collected by the federal Environmental Protection Agency.

The scientists were looking for several types of chemicals from a class of fluorinated substances used commonly in firefighting foam.

Buried below the ice sheet that covers most of Greenland, there's an abandoned U.S. Army base. Camp Century had trucks, tunnels, even a nuclear reactor. Advertised as a research station, it was also a test site for deploying nuclear missiles.

If you think it's been hot this year, you're right. The latest temperature numbers from NASA and the National Oceanic and Atmospheric Administration say the first six months of 2016 were the hottest on record around the planet.

Frigatebirds, seagoing fliers with a 6-foot wingspan, can stay aloft for weeks at a time, a new study has found. The results paint an astonishing picture of the bird's life, much of which is spent soaring inside the clouds.

A team of archaeologists diving near the Greek island of Antikythera have reported a startling new discovery from a previously explored 2,000-year-old shipwreck. The find — a very heavy, metal cylinder — offers new insights into the maritime warfare of ancient times, the scientists say.

It's easy to think that evolution led inevitably to modern humans, the cleverest of apes. But there were some strange excursions along the way. Take, for example, the Hobbits.

That's the nickname for a 3-foot-tall human relative that once lived in what is now Indonesia. A new discovery suggests that it was island life that created this dainty creature.

Anthropologists first found the bones of the Hobbits in 2004 on the Indonesian island of Flores. Their scientific name is Homo floresiensis.

Here's a mystery found in a French cave. It appears that a group of Neanderthals walked into that cave about 176,000 years ago and started building something. Neanderthals were our closest living relatives but they weren't known as builders or cave explorers.

Scientists identify the forms as "constructions," but they can't figure out what they were for.

The Florida Everglades is a swampy wilderness the size of Delaware. In some places along the road in southern Florida, it looks like tall saw grass to the horizon, a prairie punctuated with a few twisted cypress trees. The sky is the palest blue.

But beneath the surface a different story is unfolding. Because of climate change and sea level rise, the ocean is starting to seep into the swampland. If the invasion grows worse, it could drastically change the Everglades, and a way of life for millions of residents in South Florida.

A man moves to a city in Florida and decides he wants to be mayor. He wins the election. He's happy. Then he's told his city is slowly going underwater. Not financially. Literally.

James Cason had settled in Coral Gables, a seaside town near Miami, six years ago. He ran for mayor on the Republican ticket and, soon after he won, heard the lecture by scientists about sea level rise and South Florida that left him flabbergasted.

On Friday, most of the world's governments are set to sign the most sweeping climate agreement in history. Their signatures will codify promises they made in Paris last December to reduce emissions of greenhouse gases.

The two largest sources of those gases are the U.S. and China. Whether they keep their promises will in large part determine whether the Paris deal succeeds. And it is by no means clear that they'll be able to keep their promises.