Christopher Joyce appears in the following:
Thursday, November 10, 2016
During the campaign, the president-elect said climate change is not real, and he rejected last year's international agreement to cut greenhouse gases.
Thursday, October 27, 2016
Four years of too little water is killing millions of trees in the Sierra, yet some giant sequoias still thrive. Tree-climbing scientists are exploring sequoias branch by branch to find their secret.
Tuesday, October 25, 2016
Researchers say the ice is melting more quickly than they've ever seen. They think it's because warm water is circulating under the ice shelf, and that the melting process appears to be irreversible.
Wednesday, October 19, 2016
Capuchin monkeys in Brazil have been seen making sharp stone flakes. It was previously thought that only humans and their ancestors had flaking skills.
Monday, October 17, 2016
Presidential contenders Hillary Clinton and Donald Trump have very different views on energy and climate change. In our series, What's The Issue, we find out just how much they differ.
Friday, October 07, 2016
For the past decade, no major hurricanes have come ashore along the East Coast or Gulf of Mexico. Hurricane Matthew is ending that lucky streak.
Thursday, October 06, 2016
New research reveals that the amount of methane from oil and gas operations is much larger than previously thought. But the recent uptick in methane emissions seems to be from agriculture.
Tuesday, October 04, 2016
Nearly 200 nations agreed last December to the most ambitious deal to slow climate change ever. It looks very likely that the requisite number of countries will actually ratify the deal this week to make it official. That will set in motion the difficult process of making sure both rich and poor countries deliver on their promises to cut emissions of greenhouse gases.
Thursday, September 15, 2016
Flood managers suspect August's big rainstorms and floods in Louisiana are becoming more common there and elsewhere because of climate change. One clue: Much of the damage was beyond the flood plain.
Wednesday, August 24, 2016
Earth's changing climate has made the quest to understand wave behavior more important than ever, scientists say. Rising seas, storm surge and dune and reef erosion all shape Florida's Gulf Coast.
Tuesday, August 23, 2016
Years of drought have strained California's forests, killing millions of trees and fueling wildfires.
Friday, August 19, 2016
July 2016 was Earth's hottest month on record. And Arctic ice has shrunk this year almost as much as it did in 2012 — the most severe melt to date.
Tuesday, August 09, 2016
The study finds, in many cases, amounts barely higher than government guidelines allow, but significant levels in 66 water supplies. The chemicals are very persistent once in the environment.
Friday, August 05, 2016
Camp Century was a research station and test site for deploying nuclear missiles before it was abandoned under the ice in the '60s. Scientists say pollutants left behind may spread as the ice melts.
Tuesday, July 19, 2016
For example, June's average was up 1.62 F. A couple of degrees may not sound like much, but it's persistent warming over decades that alters the atmosphere, the oceans, and most everything else.
Tuesday, July 19, 2016
During the 12 months from May 2015 to May 2016, each month set an all-time heat record. That's on average around the world. Some places were not record breakers, but overall, global warming is increasing. NASA scientists talk about what the rest of this year may look like, and whether it will set yet another global record.
Thursday, June 30, 2016
Scientists have been attaching transmitters on the huge seagoing birds and are astonished by their ability to stay aloft.
Wednesday, June 29, 2016
The National Park Service is racing to record soundscapes of each park that capture nature for the ear. "If we start to lose sounds of wilderness, we start to lose a piece of us," one scientist says.
Tuesday, June 28, 2016
Divers exploring the famous Antikythera shipwreck, 200 feet beneath the water's surface in Greece, have turned up a heavy object they think might have been a powerful weapon in the first century B.C.
Wednesday, June 08, 2016
Scientists say tiny bones dating back 700,000 years on the Indonesian island of Flores shine new light on how these mysterious, 3-foot-tall creatures got that way.