Christopher Joyce

Christopher Joyce appears in the following:

Can The U.S. And China Keep Their Climate Pledges?

Thursday, April 21, 2016

The two nations topping the world in greenhouse gas emissions agreed at the Paris talks to cut way back. But critics have stalled a key part of the U.S. plan, and China's good start may be fragile.


Climate Change? Some People May Not Be Sweating It Because The Weather Is Nicer

Wednesday, April 20, 2016

Researchers say climate change has made weather more pleasant in many parts of the U.S. Winters have been milder, and summers haven't become much hotter. But that's likely to change in coming years.


U.S. Geology Maps Reveal Areas Vulnerable To Man-Made Quakes

Tuesday, March 29, 2016

Parts of Oklahoma and Texas have about the same risk of an earthquake as parts of California, the maps show. Why? Wastewater that oil and gas operations are pumping into wells adds pressure on faults.


To Make A Wild Comeback, Cranes Need More Than Flying Lessons

Wednesday, March 02, 2016

The 15-year project wasn't a flight of fancy. Biologists used a plane to successfully teach many young, captive-bred whooping cranes to migrate cross-country. But the birds aren't reproducing well.


Mysterious Ocean Buzz Traced To Daily Fish Migration

Monday, February 22, 2016

Scientists say the buzz picked up by hydrophones in the Pacific may be caused by "fish farts" — the emptying of air bladders that let clouds of fish rise and fall during daily hunts for food.


Science Seeks Clues To Human Health In Neanderthal DNA

Thursday, February 11, 2016

Some of the genetic variations in human DNA that have been linked to quick clotting or depression or diabetes lie within or near the genetic stretches we picked up from Neanderthals, a study finds.


Chinese Taste For Fish Bladder Threatens Tiny Porpoise In Mexico

Tuesday, February 09, 2016

The nets that ensnare the giant totoaba fish also trap and kill the world's smallest and rarest mammal: a porpoise called the vaquita.


U.S. Quake Warning System Could Save Lives When Seconds Count

Tuesday, February 02, 2016

Before it does damage, an earthquake sends out a "P wave" that scientists use to find location and size. The U.S. quake warning system under development on the West Coast is built around the P wave.


A Big El Niño Was The Likely Instigator Of Last Week's Blizzard

Wednesday, January 27, 2016

The weather trail that led to a blizzard in the Mid-Atlantic likely started with a very warm Pacific, scientists suspect. Whether climate shifts will bring more strong El Niños is still uncertain.


Aleutian Quake Zone Could Shoot Big Tsunamis To Hawaii, California

Tuesday, January 12, 2016

Tension is building along a major fault in the seabed off Alaska's coast, research shows. Devastating tsunamis from sudden slips in certain sections could directly hit Hawaii and Central California.


U.S. Weather Wet And Wild In 2015, Though No Big Hurricanes

Thursday, January 07, 2016

The U.S. had 10 weather events in 2015 that cost $1 billion or more in damage, with December the warmest and wettest month on record. Climate scientists blame a warming climate and strong El Nino.


How Sound Reveals The Invisible Within Us

Tuesday, December 29, 2015

Editor's note: One of the most intriguing stories we ran in 2015 looked at — and listened to — how the invention of the stethoscope changed medicine. We're presenting it again, in case you missed it in July.

Over the years, scientists have mostly interpreted the world through ...


Experts Explain Why 2015 Is A Warm One For Earth's Climate

Monday, December 28, 2015

This Year will likely be the hottest year on record. Climate change is partly to blame, but so is El Nino. That's the weather pattern from the Pacific that affects weather in the America's as well.


Negotiators In Paris Sign Off On Ambitious Climate Deal

Monday, December 14, 2015

Over the weekend in Paris, representatives from 196 countries signed an agreement that aims to curb climate change. What's in it, and what happens next?


What The Last-Minute Climate Deal-Making Means For the Pact

Sunday, December 13, 2015

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Paris Climate Talks Conclude With Landmark International Agreement

Saturday, December 12, 2015

On Saturday, world leaders approved what's being hailed as a historic deal to reduce greenhouse emissions. NPR's Christopher Joyce gives the details.


Paris Climate Negotiators Continue Into Overtime

Friday, December 11, 2015

The U.N. climate conference in Paris was supposed to end Friday, but negotiators have extended it for at least another day. NPR has the latest from Paris.


At Climate Change Conference, More Time Is Needed To Reach A Deal

Friday, December 11, 2015

Negotiations at the Paris climate summit will be wrapping up soon and a global agreement is expected this weekend. A deal signed in Paris would come into being in 2020.


Environmental Activists Adjust Their Tactics Since First Climate Talks

Thursday, December 10, 2015

It's been 17 years since the Koyto climate talks. What have environmental groups learned about advocacy, lowering expectations and the realities of international politics, government and business?


Deadline Nears For Negotiators To Reach Deal On Climate Change

Wednesday, December 09, 2015

At the U.N. climate summit in Paris, negotiators have 48 hours until their deadline to reach a deal on global warning. NPR has the latest from the summit.