Christopher Joyce appears in the following:
Monday, November 25, 2013
Previous estimates of the climate-warming gas were based on the rough number of methane-emitting sources on the ground — such as factories, refineries, stoves, swamps, landfills and cattle herds. But by directly measuring levels of methane in the air instead, a new study puts the total much higher.
Monday, November 11, 2013
Super Typhoon Haiyan devastated the Philippines, destroying whole towns, killing thousands and displacing more than 600,000 people — and it raises questions about emergency policies and realities in Pacific coastal nations.
Monday, November 04, 2013
Huge stone slabs weighing up to 300 tons that now reside in Beijing's Forbidden City were slid more than 40 miles in 15th- and 16th-century China over water-lubricated ice roads in the dead of winter. Though spoked wheels had been around for almost 3,000 years, the ice roads were smoother and required less manpower.
Wednesday, October 30, 2013
It's been a year since Hurricane Sandy knocked the mid-Atlantic states for a loop. Scientists say that as sea level rises, such storms are likely to occur more often. But the new, more realistic flood maps could boost flood insurance rates. Will politics trump science?
Friday, September 06, 2013
Scientists report in the journal Nature Geoscience that they've uncovered the largest volcano on Earth in the Northwest Pacific Ocean, about 1,000 miles east of Japan. In fact it's one of the largest in the solar system, second only to Olympus Mons on Mars. Scientists have been studying the massive structure for decades, but now are confirming it's a single volcano about the size of New Mexico. It rises about four miles off the sea floor, but doesn't break through the ocean surface. Called Tamu Massif, it hasn't erupted in more than 130 million years, helping to keep its true nature secret.
Friday, August 30, 2013
A decade ago, cranes that had never before migrated followed the lead of an ultralight plane to learn the route south. Several generations later, old cranes are teaching young birds to navigate that same route. It's a clue that migration is a combination of nature and nurture, researchers say.
Friday, August 23, 2013
A new scientific report claims that a powerful quake can, in effect, be contagious. The finding could have important implications for hazard planning in earthquake zones.
Thursday, August 22, 2013
A nine-year study tracked more than 800 of the massive and largely mysterious whale sharks. For the first time, researchers have tracked the sharks' far-flung migration and where they may go to give birth.
Friday, August 09, 2013
An ecologist wondered if Hawaiian menus might help explain what happened to Hawaii's sea turtle population. But the menus revealed another marine tragedy: that local fish numbers had dropped to about a tenth of what they once were.
Tuesday, August 06, 2013
The federal government's top climate scientists announced Tuesday that 2012 was really hot — among the top 10 hottest years on record and the hottest ever in the U.S., with rising sea levels, less Arctic sea ice and warmer oceans. And the American Geophysical Union called humanity "the major influence" on global climate change.
Thursday, August 01, 2013
All told, the scientist has discovered 131 new species of animals in his career, and some are so scary-looking, he's named them after demons. It's a task that's taken more than 30 years of crawling through rain forests to accomplish, and Longino says he's still only scratched the surface.
Monday, July 29, 2013
Many forests in the American West have evolved with fire, and actually benefit from the occasional wildfire. But researchers are finding that trees that once would survive and thrive with small fires are now losing their ability to do so.
Wednesday, July 24, 2013
Deep-sea natural gas reservoirs sometimes contain oil, but experts say it's highly unlikely Tuesday's accident in the Gulf of Mexico would leak anything like the BP spill. And there are signs suggesting the only thing crews have to deal with is leaking gas.
Sunday, July 21, 2013
Fire is a natural part of the western landscape, and a push over the last century to eliminate fires has threatened the habitats that some plants and animals need. In a Montana valley, fire scientists are trying to show that they can actually save wilderness by burning it.
Thursday, July 18, 2013
Over the past decade, fires in the American West have grown in intensity and size. "We're on a growth trajectory that is very scary," says one fire tracker. "And if we think it's expensive and dangerous now, we're just now seeing the very beginnings of how big this problem is going to be very soon."
Tuesday, July 16, 2013
A fossilized tyrannosaur tooth found lodged between bones in a hadrosaur's tail is giving paleobiologists pretty firm clues about the tyrant king's meal plan. And Hollywood may have been right all along — T. Rex definitely knew how to kill.
Thursday, July 11, 2013
Pumping industrial wastewater into storage wells deep underground can prime nearby faults for an earthquake. And studies show that a large quake — even one on the other side of the planet — can also push faults over the edge and set off a swarm of mini-earthquakes.
Thursday, July 11, 2013
In Montana's Centennial Valley, conservationists made a grievous mistake while trying to save the trumpeter swan — they nearly wiped out Arctic grayling. Now they're looking for ways to make sure both species get a place on the ark.
Wednesday, July 10, 2013
The chicken-size sage grouse is as much a part of America's Western range as antelopes and cowboys. The birds nest beneath sagebrush, and as it disappears, so do the grouse. Biologists hope to protect the bird without starting a 21st century range war.
Tuesday, July 02, 2013
Nuclear bomb tests in the 1950s and '60s pumped a lot of radiocarbon into the atmosphere. It went everywhere, including into plants that elephants eat. By measuring the levels of this carbon in elephant tusks, scientists can tell when an elephant died — and whether the ivory is being traded illegally.