Fri, 08/10/2010 - 10:35 by Prince damin
Seattle -- Global warming is greatest in the Northern Hemisphere but its impact on life could be much greater in the tropics, a U.S. study says.
Even with smaller increases in temperature in the world's tropical zones, those regions could see greater impacts on life, ranging from shifting geographic ranges to species extinction, says Michael Dillon, an assistant professor of zoology and physiology at the University of Wyoming.
A study focused on ectothermic, or cold-blooded, organisms, those whose body temperature approximates the temperature of their surroundings.
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Sun, 26/09/2010 - 11:27 by Rakhi
Los Angeles -- Most Californians say global warming is a serious issue but are split on an upcoming ballot measure about the state's pioneering climate law, a poll indicates.
California's sweeping global warming law requires greenhouse gas emissions by power plants, factories and vehicles be slashed to 1990 levels by the end of the decade, but Proposition 23 on the November ballot would suspend the 2006 law until the state's unemployment rate drops to 5.5 percent for an entire year, USA Today reported.
The state's unemployment is currently more than 12 percent, and California rarely has a yearlong level below 5.5 percent, the Los Angeles Times reported.
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Thu, 16/09/2010 - 10:19 by Rakhi
Reading, England -- Climate change, expected to increase extreme weather events around the world, will make one particular kind of event rarer, U.K. researchers say.
Scientists at the University of Reading say climate simulations show severe North Atlantic storms known as "polar lows" and resembling arctic hurricanes may decrease by as much as 50 percent by the end of this century, a report in the journal Nature says.
Polar lows are small-scale but severe winter storms that threaten offshore human activities in the North Atlantic region.
Reading researchers Matthias Zahn and Hans von Storch studied the formation of polar lows in a series of regional climate simulations corresponding to different possible future climates.
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Thu, 16/09/2010 - 10:10 by Priyanka
Challenging the age old belief that men understand science better, a new study has revealed that women not only have a good understanding of science but are also more likely than men to believe in climate change science.
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Thu, 16/09/2010 - 09:18 by Prince damin
East Lansing, Mich. -- Women are more likely to believe scientific consensus on global warming than men are, a U.S. study says.
The findings challenge common perceptions that men are more scientifically literate, said Michigan State University sociologist Aaron M. McCright.
The study is one of the first to focus on how the genders think about climate change, a university release said Tuesday.
The findings also reinforce past studies that suggest women lack confidence in their science comprehension.
"Here is yet another study finding that women underestimate their scientific knowledge -- a troubling pattern that inhibits many young women from pursuing scientific careers," McCright said.
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Thu, 09/09/2010 - 11:30 by Rakhi
New York -- Expanding irrigation is helping feed the world's billions of people and may even mask global warming, but the future could bring problems, scientists say.
Columbia University researchers say some major groundwater aquifers, a source of irrigation water, will dry up in the future hitting people with the double blow of food shortages and higher temperatures, an article in the journal Geophysical Research says.
"Irrigation can have a significant cooling effect on regional temperatures, where people live," Michael Puma, a university hydrologist, says. "An important question for the future is what happens to the climate if the water goes dry and the cooling disappears? How much warming is being hidden by irrigation?"
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Fri, 27/08/2010 - 10:28 by Prince damin
Helsinki, Finland -- Receding arctic ice from global warming may open new avenues for tourism and trade and could reveal vast new natural resource reserves, researchers say.
The northern ice cover is becoming smaller and thinner, and scientists predict the Arctic Ocean could lose its icecap completely during summertime by the end of the century at the latest, and possibly as early as the 2030s, Finland's Helsingen Sonomat reported.
Twenty years from now it may be possible to travel to the North Pole by ship, they say. Russia has already organized luxury cruises to the North Pole in its nuclear-powered icebreakers, but the next generation may be able to reach the top of the world in their pleasure boats, they say.
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Fri, 27/08/2010 - 09:51 by Prince damin
Boston -- Scientists say a substance dubbed "dry water" resembling powdered sugar could absorb and store carbon dioxide, the major greenhouse gas causing global warming.
In a presentation Wednesday at the annual meeting of the American Chemical Society, scientists hinted at additional uses, including a greener, more efficient method of jump starting the chemical reactions involved in the creation of hundreds of consumer products, and a safer way to store and transport hazardous industrial materials, ScienceDaily.com reported.
"There's nothing else quite like it," researcher Ben Carter said. "Hopefully, we may see 'dry water' making waves in the future."
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Sat, 07/08/2010 - 22:30 by Deepika Garg
A massive sheet of ice has separated from the Petermann Glacier in northern Greenland, forming the largest Arctic iceberg in about four decades.
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Wed, 04/08/2010 - 04:00 by Prince damin
Athens, Ga. -- A belief that open water in polar regions created by melting ice can absorb carbon dioxide and lessen global warming may be wrong, U.S. scientists say.
A University of Georgia biochemist led a survey of waters in the Canada Basin from north of Alaska to the North Pole showing its value as a potential carbon dioxide "sink" may be short-lived at best and minor in terms of what the planet will need to avoid future problems, a university release said Tuesday.
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Thu, 08/07/2010 - 15:00 by Jaspreet Virk
A sigh of relief for the scientists at the Climatic Research Unit (CRU) of the University of East Anglia! Clearing the climate change scientists of allegations that they manipulated data to promote their theory that global warming is man-made, a new reports states that they did not fake the results.
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Fri, 02/07/2010 - 01:16 by Pankaj Damin
Washington -- Global warming caused by human activity may not be a modern phenomenon because even prehistoric man may have affected his environment, researchers say.
Early hunters contributing to the extinction of wooly mammoths around 15,000 years ago may have contributed to a side effect of heating up the planet, an American Geophysical Union release said Wednesday.
In a study published in the AGU journal, researchers propose a scenario to explain how the ancient hunters could have triggered global warming.
In northern regions, mammoths would have grazed down birch trees, leaving only grasslands. As mammoth populations dropped because of human hunting, birch trees spread, dominating the grasses.
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