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.

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Science
3:28 am
Thu October 11, 2012

Software Calculates City-Specific Carbon Footprint

Bedrich Benes and Michel Abdul-Massih

Originally published on Thu October 11, 2012 3:58 pm

One way to measure greenhouse gases is simply to capture them at the source: You put an instrument on a smokestack, for example. Cities, however, are full of cars, buses, factories and homes that all use fuel or electricity. No one really knows how much carbon dioxide, the main greenhouse gas, comes from each.

Ecologist Kevin Gurney says he can find out.

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Science
5:06 pm
Wed September 19, 2012

Hungry Snakes Trap Guam In Spidery Web

Invasive brown tree snakes have gobbled up most of Guam's native forest birds. Without these avian predators to keep their numbers in check, the island's spider population has exploded.
Isaac Chellman Rice University

Originally published on Wed September 19, 2012 8:09 pm

The Pacific Island of Guam is experiencing a population explosion — of spiders.

There are more spiders there now than anyone can remember. To get a sense of how weird the situation is, I started out in Maryland. On my front porch, overlooking the Severn River.

At 6:30 in the morning on a cool fall day, I find two spider webs in a matter of five minutes. But if I were on the island of Guam, I might find 70 or 80 spider webs in five minutes.

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Science
4:16 pm
Mon September 17, 2012

What Drove Early Man Across Globe? Climate Change

An artist's re-creation of the first human migration to North America from across the Bering Sea.
DEA Picture Library De Agostini/Getty Images

Originally published on Mon September 17, 2012 6:39 pm

Anthropologists believe early humans evolved in Africa and then moved out from there in successive waves. However, what drove their migrations has been a matter of conjecture.

One new explanation is climate change.

Anthropologist Anders Erikkson of Cambridge University in England says the first few hardy humans who left Africa might've gone earlier but couldn't. Northeastern Africa — the only route to Asia and beyond — was literally a no man's land.

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Science
3:31 am
Tue September 11, 2012

A Berry So Shiny, It's Irresistible (And Inedible)

The shiny blue berries of the tropical Pollia condensata plant rely on their looks, not nutritional content, to attract birds to spread their seeds.
Silvia Vignolini et al. via PNAS

Originally published on Tue September 11, 2012 9:57 am

That fake fruit in the wooden bowls that hotels love to decorate their lobbies with never looks quite right. No, apparently it takes nature to make a fake that looks even better than the real thing.

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Megafires: The New Normal In The Southwest
5:20 am
Sun August 26, 2012

'Torture Lab' Kills Trees To Learn How To Save Them

Powers walks along plastic gutters designed to keep rain away from tree roots to simulate drought. Scientists here are studying the effects of sustained drought conditions on the tree species of the Southwest.
David Gilkey NPR

Originally published on Sun August 26, 2012 6:03 pm

Last of a five-part series

The droughts that have parched big regions of the country are killing forests.

In the arid Southwest, the body count is especially high. Besides trying to keep wildfires from burning up these desiccated forests, there's not much anyone can do. In fact, scientists are only now figuring out how drought affects trees.

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Megafires: The New Normal In The Southwest
3:37 pm
Fri August 24, 2012

Is It Too Late To Defuse The Danger Of Megafires?

Timmons and Springer work in the Apache-Sitgreaves National Forests, which were burned during last year's Wallow Fire. The largest fire in Arizona history, Wallow barreled through a half-million acres of forest.
David Gilkey NPR

Originally published on Fri August 24, 2012 7:47 pm

Fourth in a five-part series

Forests in the Southwest have become a fuel stockpile. A century of U.S. Forest Service policy of quashing all fires has allowed forests to become overgrown, and now a warming climate is making the problem worse.

Scientists are trying to defuse these green time bombs. Is it too late?

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Megafires: The New Normal In The Southwest
3:18 am
Fri August 24, 2012

In Southwest, Worst-Case Fire Scenario Plays Out

Craig Allen, left, a research ecologist with the U.S. Geological Survey, and Jorge Castro, a visiting professor of ecology from Spain, survey a plateau ravaged during last year's Las Conchas fire in New Mexico. The megafire burned over 150,000 acres of forest.
David Gilkey NPR

Originally published on Fri August 24, 2012 7:48 pm

Third of a five-part series

As the Earth's average temperature creeps upward, climate scientists have predicted record heat waves and droughts. That's what we've seen this summer in the U.S.

The question has become, are we now seeing the real damage climate change can do?

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Megafires: The New Normal In The Southwest
2:51 pm
Thu August 23, 2012

Why Forest-Killing Megafires Are The New Normal

Jorge Castro, a visiting professor of ecology from Spain, sips water in the shade of a burnt tree in New Mexico's Bandelier Wilderness area, adjacent to the Bandelier National Monument. This site was devastated by last year's Las Conchas fire.
David Gilkey NPR

Originally published on Sun August 26, 2012 9:46 am

Second of a five-part series

Fire scientists are calling it "the new normal": a time of fires so big and hot that no one can remember anything like it.

One of the scientists who coined that term is Craig Allen. I drive with him to New Mexico's Bandelier National Monument, where he works for the U.S. Geological Survey. We take a dirt road up into the Jemez Mountains, into a landscape of black poles as far as you can see.

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Megafires: The New Normal In The Southwest
3:17 am
Thu August 23, 2012

How The Smokey Bear Effect Led To Raging Wildfires

Adams (left) talks with Swetnam in their laboratory, nestled under the football stadium.
David Gilkey NPR

Originally published on Fri August 24, 2012 7:50 pm

First of a five-part series

The history of fire in the American Southwest is buried in a catacomb of rooms under the bleachers of the football stadium at the University of Arizona.

Here rules professor Thomas Swetnam, tree ring expert. You want to read a tree ring? You go to Tom. He's a big, burly guy with a beard and a true love for trees.

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Environment
3:19 am
Thu August 9, 2012

Building For Birds: Architects Aim For Safer Skies

Architect Guy Maxwell holds a printout of his proposed design for the new Bridge Building at Vassar College in Poughkeepsie, N.Y.
John W. Poole NPR

Originally published on Thu August 9, 2012 1:07 pm

Second of a two-part series. Read Part 1.

Modern architecture's love affair with tall glass buildings takes a toll. Every year, millions of birds crash into glass windows in North America.

These collisions may seem like an intractable problem. But in New York City, an architect is trying to find a solution.

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