Christopher Joyce

Christopher Joyce appears in the following:

French Bread Is Known Worldwide, Says Chief Baker At Climate Talks

Tuesday, December 08, 2015

Fueling the climate talks in France means one thing: bread — and lots of it. The bakery at the climate talks in Paris makes 10,000 bread rolls a day.


Small, Surprising Dip In World's Carbon Emissions Traced To China

Monday, December 07, 2015

Climate scientists say global emissions of carbon dioxide seem to have dipped a bit in 2015, though the world economy is still growing. China's reduced use of coal may be the main reason.


Talks In Paris To Reach A Treaty On Global Warming Enter Final Week

Monday, December 07, 2015

Negotiators from nearly 200 countries have spent a week in Paris trying to come up with a new treaty to curb global warming. They've got the rest of this week to finish.


U.N. Delegates Confront The Cost Of Stopping Climate Change

Friday, December 04, 2015

Climate conferences over the past decade have foundered on finance, especially on who's going to pay for the huge cost of shifting away from fossil fuels. Most difficult is the discon...


How Obama Hopes To Achieve U.S. Climate Goals

Wednesday, December 02, 2015

Past U.S. leaders tried to commit the nation via treaty to steep cutbacks in greenhouse gases. But without congressional support, those pledges fizzled. President Obama is trying regulation, instead.


Why Negotiators At Paris Climate Talks Are Tossing The Kyoto Model

Monday, November 30, 2015

Negotiators and heads of state from nearly 200 countries are meeting for the next two weeks near Paris to craft a new treaty to slow global warming.

It's the 21st "Conference of the Parties" held by the United Nations to tackle climate change. One treaty emerged, in 1997, after ...


Kyoto Treaty Fizzled, But Climate Talkers Insist Paris Is Different

Monday, November 30, 2015

The 1997 Kyoto treaty set targets for cutting greenhouse gas emissions that many nations didn't meet. This time, stakes are higher and all countries will be asked to set and meet their own limits.


Scientists Try Radical Move To Save Bull Trout From A Warming Climate

Thursday, October 08, 2015

Bull trout are dwindling in Montana as their home waters warm and invasive fish devour them. Scooping up threatened fish and moving them higher up the mountain could backfire. Is the risk worth it?


'Nation's T. Rex' Strikes A Rapacious Pose

Thursday, October 01, 2015

Drills and screws would damage the frail, 65.5 million-year-old bones of the Smithsonian's 38-foot-long Tyrannosaurus rex. So how do you make it stand? Blacksmiths in Canada are working their magic.


Obama And Xi Emerge From Meeting With Big-Ticket Promise On Climate

Friday, September 25, 2015

Chinese President Xi Jinping and President Obama agreed on at least one thing this week: They need to coordinate action to lower greenhouse gas emissions to combat climate change.


How Sound Shaped The Evolution Of Your Brain

Thursday, September 10, 2015

Sound gets into our brains and processed so quickly that it shapes all other perceptions, says neuroscientist Seth Horowitz. "You hear anywhere from 20 to 100 times faster than you see."


Squirrels Mimic Bird Alarms To Foil The Enemy

Thursday, September 03, 2015

It can take more than just a keen ear to figure out what animals are saying. Sometimes, scientists are learning, you have to talk back to map the rich networks of conversation in a forest.


Good Vibrations Key To Insect Communication

Thursday, August 27, 2015

For some insects, sound waves or vibrations are the real social media — high-speed rumbles sent through the air and along leaf stems to help the bugs claim territory, send warnings and find mates.


To Decode Elephant Conversation, You Must Feel The Jungle Rumble

Thursday, August 20, 2015

The trumpeting roar of an elephant is loud. But scientists living with herds in the forests of central Africa say the deep rumbles that humans can't hear, but can feel, carry crucial messages, too.


Listening To Whale Migration Reveals A Sea Of Noise Pollution, Too

Thursday, August 13, 2015

Christopher Clark, an engineer turned whale biologist, wired the world's oceans with hydrophones. Whales sing as they migrate, he learned. And the ship sounds clouding the ocean can deeply interfere.


It Took A Musician's Ear To Decode The Complex Song In Whale Calls

Thursday, August 06, 2015

Male humpback whales create "songs" together, scientists say. Katy Payne was the first to hear the shifts in pitch and pattern in the collective calls as complex music — haunting, evolving tunes.


Obama Challenges Power Engineers To Do More With Less

Monday, August 03, 2015

If the president's Clean Power Plan survives legal and political challenges, the nation's electricity industry will have 15 years to remake itself and reduce CO2 emissions by a hefty margin.


Close Listening: How Sound Reveals The Invisible

Thursday, July 30, 2015

The stethoscope seems so simple — a 19th century tool for listening more closely to the human heart or lungs. It also sparked a culture of listening that is transforming the way scientists learn.


Bones In Church Ruins Likely The Remains Of Early Jamestown's Elite

Tuesday, July 28, 2015

Scientists say remains of four men exhumed from what was once an Anglican church suggest they were well-nourished, "high-status" leaders in the early 17th century colony. And one was likely Catholic.


2 Gene Studies Suggest First Migrants To Americas A Complex Mix

Tuesday, July 21, 2015

Scientists assume a wave of people from what's now Siberia crossed into North America via Alaska, maybe 23,000 years ago. Genetics support that, but may also suggest another wave from Australasia.