Glaciers are Melting and Sea is Rising….do you care?
By Michael Lang on Feb 27, 2009 in BRAIN FOOD
Glaciers in Greenland and Antarctica are melting faster than predicted, accelerating their march to the sea and adding to the rising ocean levels that threaten coastal communities worldwide.
The Pine Island Glacier, the biggest in West Antarctica, has sped 40 percent faster toward the sea since the 1970s and Smith Glacier is moving 83 percent quicker than 15 years ago, said David Hik, executive director of the Canadian secretariat of the International Polar Year, an international scientific project.
“The loss of ice is pretty spectacular,” Hik, a professor at the University of Alberta in Edmonton, said today in a telephone interview from Geneva. “The big outflow glaciers on Greenland are accelerating their discharge as well.”
The study means scientists now have a better handle on the potential contribution to sea-level rise of melting ice sheets than two years ago, when the United Nations produced its biggest report on global warming, predicting an increase in sea levels of 18 to 59 centimeters (7 to 23 inches) this century.
The UN acknowledged a lack of certainty about ice loss from Antarctica. The latest findings will help refine climate-change modeling and predictions of future sea-level rise, Hik said.
“Altogether, the glaciers in the West Antarctic are losing about 103 billion tons a year of ice in discharge,” he said. “This discharge from west Antarctica would add an additional 10 to 20 centimeters” to the existing UN predictions of sea level rise this century, he said.
While the UN said a complete melt of the West Antarctic ice sheet is unlikely this century, Hik said “we thought lots of things were unlikely even two
years ago.” A collapse of the sheet could add 1 to 1.5 meters to sea levels this century, he said.
“The effects of warming are going to be global,” Hik said. “What happens at the poles will influence all parts of the planet and it’s very evident that we can see rapid changes in sea level associated with changes in the Arctic and Antarctic.”
International Polar Year drew in 50,000 researchers from 63 countries, according to Hik. The project spanned two years, ending next month, to incorporate a full year each of the Arctic in the north and the Antarctic in the south.
32 Comment(s)
By Lisamarie on Feb 27, 2009 | Reply
True about global warming being the major factor in this. However it doesn’t seem to mention what the biggest CAUSE of it is, which the UN also reported on in ‘06, and that is animal agriculture, which produces 18% of all greenhouses gases/methane emissions–more than ALL form of transportation combined!
We need to either significantly cut BACK on our eating of animals or better yet eliminate it all together.
Check out my article above on organically raised cows, as that, just as much as factory farms if not more so, is what is causing the melting of the glaciers and destruction of the polar bears and the other animals’ who lives there’s habitat and survival.
By Lisamarie on Feb 27, 2009 | Reply
OOPS sorry–I just subscribed today to digg.com and thought I was still on that page.
The article I’m referring to is on digg.com under the “environment” articles-sorry!
By Bea Elliott on Feb 28, 2009 | Reply
I agree! Here again we have indication that the world is in danger… and we are told to change light bulbs! Where is the urging to reduce/eliminate our meat consumption? Livestock’s Long Shadow report points to 18% of animal agriculture to be responsible for methane and greenhouses gas. Adopting a plant based vegan diet is the most effective method to halt this crisis.
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