May 28th, 2009
From the Environmental News Network (ENN.com)
New research by the National Center for Atmospheric Research points to the possibility that water from the melting Greenland Ice Sheath could change oceanic circulation in the North Atlantic, in a way that would raise sea levels off the Northeast by about eight inches more than the average global sea level rise that is expected with global warming.
Results of the study are being published this week in Geophysical Research Letters. They suggest that moderate to high rates of ice melt from Greenland may shift ocean circulation by about 2100, causing sea levels off the northeast coast of North America to rise by about 30 to 51 centimeters (12 to 20 inches) more than other coastal areas.
The research builds on recent reports that have found that sea level rise could adversely affect North America, and its findings suggest that the situation is even more urgent than previously believed.
“If the Greenland melt continues to accelerate, we could see significant impacts this century on the northeast U.S. coast from the resulting sea level rise,” says scientist Aixue Hu, the paper’s lead author. Hu is at the National Center for Atmospheric Research (NCAR) in Boulder, Colo. “Major northeastern cities are directly in the path of the greatest rise.”
To assess the impact of Greenland ice melt on ocean circulation, Hu and his coauthors used the Community Climate System Model, an NCAR-based computer model that simulates global climate.
They considered three scenarios: the melt rate continuing to increase by 7 percent a year, as has been the case in recent years, or the melt rate slowing down to an increase of either 1 or 3 percent a year.
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April 6th, 2009
Written by Brian Liloia, courtesy of Planetsave.com
Americans eat lots of meat. So much so that livestock is now one of the leading contributors to global warming, responsible for 18 percent of greenhouse gas emissions as measured in a carbon dioxide equivalent.
A recent United Nations report concluded that the meat industry causes almost 40% more greenhouse gas emissions than all the world’s transportation systems — that means all of the globe’s cars, trucks, planes and ships combined.
Kathy Preston poses an important question for meat-eating Americans concerned about the effects of global warming: what are the effects of going vegetarian for just one day? Here are her astounding statistics about how going vegetarian for a single day can help prevent global warming:
If everyone went vegetarian just for one day, the U.S. would save:
- 100 billion gallons of water, enough to supply all the homes in New England for almost 4 months;
- 1.5 billion pounds of crops otherwise fed to livestock, enough to feed the state of New Mexico for more than a year;
- 70 million gallons of gas — enough to fuel all the cars of Canada and Mexico combined with plenty to spare;
- 3 million acres of land, an area more than twice the size of Delaware;
- 33 tons of antibiotics.
If everyone went vegetarian just for one day, the U.S. would prevent:
- Greenhouse gas emissions equivalent to 1.2 million tons of CO2, as much as produced by all of France;
- 3 million tons of soil erosion and $70 million in resulting economic damages;
- 4.5 million tons of animal excrement;
- Almost 7 tons of ammonia emissions, a major air pollutant.
It is undoubtedly clear that human activity causes increased global warming, and America’s dangerous over-consumption of meat is a major contributor to climate change. Adopting a vegetarian diet is an important step towards preventing global warming. And as these alarming statistics suggest, simply decreasing the amount of meat in your diet can have a major impact.
For more information about how going vegetarian can help prevent global warming, check out the original article.
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