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Life Resurrected From Glaciers
Jul 31, 2007
Life Resurrected From Glaciers
Germs long frozen in glaciers may resurrect as Earth's warming climate melts ice, potentially speeding up the evolution of microbes, research now reveals. Although Earth germs can apparently survive up to millions of years on ice, scientists added the harsh rigors of space make it unlikely that alien life or...
Coral Reefs Disappearing Faster Than Thought
Jul 31, 2007
Coral Reefs Disappearing Faster Than Thought
Coral reefs in the central and western Pacific are disappearing twice as fast as rainforests are on land—faster than was previously thought, a new study says. The reefs in this region, called the Indo-Pacific, are disappearing at a rate of 1 percent per year—nearly 600 square miles of reef have...
Arizona Dust Causes Colorado Meltdown
May 31, 2007
Arizona Dust Causes Colorado Meltdown
Wind-blown dust from the drought-stricken Southwest can speed the melt of snow in Colorado’s mountains, yet another unpredictable effect of climate change, a new study shows. In 2006, snows in areas of Colorado's San Juan Mountains above and below the tree line (above which trees can no longer grow), unexpectedly...
Extreme Summer Forecast: 10 Degrees Hotter by 2080
Apr 30, 2007
Extreme Summer Forecast: 10 Degrees Hotter by 2080
Global warming could turn the heat way up during the summer in the eastern United States, raising the average by nearly 10 degrees Fahrenheit by the 2080s, a new NASA study finds. “There is the potential for extremely hot summertime temperatures in the future, especially during summers with less-than-average frequent...
Surprise Increase in Global Carbon Dioxide Output
Apr 30, 2007
Surprise Increase in Global Carbon Dioxide Output
Carbon dioxide emissions have accelerated globally at a greater rate than expected in recent years, scientists announced today. The average growth rate of the emissions increased from 1.1 percent a year in the 1990s to 3 percent increase per year since 2000, according to a study published this week in...
Cyclones Could Save Oceanic Conveyor Belt From Global Warming
Apr 30, 2007
Cyclones Could Save Oceanic Conveyor Belt From Global Warming
The ferocious winds of tropical cyclones churn up ocean water as they spin over the surface, significantly affecting the transport of heat in the ocean, a new study finds. And as global warming heats up the ocean surface, this process could be intensified, preventing the potential shutdown of the oceanic...
NASA: Arctic Meltdown Threatens Ice Cap's Stability
Mar 31, 2007
NASA: Arctic Meltdown Threatens Ice Cap's Stability
Perennial sea ice in the Arctic is melting faster each summer than it can be replaced during winter, a new study confirms. A study released last year found that perennial sea ice—which is at least 10 feet thick and remains throught the seasons and through the years—dropped 14 percent from...
Gambling on Global Warming Goes Mainstream
Mar 31, 2007
Gambling on Global Warming Goes Mainstream
An MIT meteorologist said three years ago that he would bet money that global average temperatures would cool back down in 20 years. The quote triggered a flurry of Internet dialogues and prompted scientists to challenge each other to make bets on climate-change issues. One scientist took the wagering meteorologist,...
Warming Kicks Frogs While They're Down
Mar 31, 2007
Warming Kicks Frogs While They're Down
As if frogs and other amphibians around the world didn’t have enough to worry about with a killer fungus spreading rapidly and humans encroaching on their habitats, now global warming seems to be affecting one of the few pristine habitats the frogs have left, a new study suggests. More than...
Study: Global Warming Could Hinder Hurricanes
Mar 31, 2007
Study: Global Warming Could Hinder Hurricanes
Global warming might not fuel more intense hurricanes in the Atlantic after all. Despite increasing ocean temperatures that feed the monstrous storms, climate change may also be ramping up the winds that choke off a hurricane’s development, a new study claims. “The environmental changes here do not suggest a strong...
Charge: Carbon Dioxide Hogs Global Warming Stage
Feb 28, 2007
Charge: Carbon Dioxide Hogs Global Warming Stage
Carbon dioxide hogs the spotlight on the stage of chemical culprits causing global warming, but other greenhouse gases deserve some blame, scientists say. “People need to be aware that it isn’t just CO2 that’s the problem,” said Keith Shine of the University of Reading in England, co-author of an article...
Why Americans are Skeptical of Their Role in Global Warming
Jan 31, 2007
Why Americans are Skeptical of Their Role in Global Warming
SAN FRANCISCO—While the evidence is clear that human-caused global warming is occurring and is a threat to many humans and other organisms on the planet, many Americans have been slow to buy the whole argument. Yesterday at its annual meeting here, the American Association for the Advancement of Science, the...
Warmer Seas Leave Fish Gasping
Dec 31, 2006
Warmer Seas Leave Fish Gasping
Warming oceans, one of the major consequences of global climate change, are making another marine species feel like a fish out of water, scientists report. Biologists have known for years that global warming is linked to declining fish stocks, but a new study of eelpouts--big-headed fish that resemble eels--is the...
The History of Climate Change Science
Dec 31, 2006
The History of Climate Change Science
This is the text of an essay on the web site “The Discovery of Global Warming” by Spencer Weart, January 2007. For an overview see the book of the same title (Harvard Univ. Press, 2003). Copyright © 2003-2007 Spencer Weart & American Institute of Physics. Reprinted here with permission. Here...
Great Empires Declined as Climate Changed
Nov 30, 2008
Great Empires Declined as Climate Changed
Great empires come and go, but it's not clear why some of them fell. New clues to the demise of two dynasties may have just emerged from a cave. Evidence found in a cave near Jerusalem reveal increasingly dry weather from 100 A.D. to 700 A.D., a period that coincided...
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