'Planetary emergency' due to Arctic melt

2012-09-20 09:30

New York - Experts warned of a "planetary emergency" due to the unforeseen global consequences of Arctic ice melt, including methane gas released from permafrost regions currently under ice.

Columbia University and the environmental activist group Greenpeace held separate events to discuss US government data showing that the Arctic sea ice has shrunk to its smallest surface area since record-keeping began in 1979.

Satellite images show the Arctic ice cap melted to 3.4 million square kilometres as of 16 September, the predicted lowest point for the year, according to data from the National Snow and Ice Data Centre in Boulder, Colorado.

"Between 1979 and 2012, we have a decline of 13% per decade in the sea ice, accelerating from 6% between 1979 and 2000," said oceanographer Wieslaw Maslowski with the US Naval Postgraduate School, speaking at the Greenpeace event.

"If this trend continues we will not have sea ice by the end of this decade," said Maslowski.

Greenhouse effect

While these figures are worse than the early estimates they come as no surprise to scientists, said Nasa climate expert James Hansen, who also spoke at the Greenpeace event.

"We are in a planetary emergency," said Hansen, decrying "the gap between what is understood by scientific community and what is known by the public".

Scientists say the earth's climate has been warming because carbon dioxide and other human-produced gases hinder the planet's reflection of the sun's heat back into space, creating a greenhouse effect.

Environmentalists warn that a string of recent extreme weather events around the globe, including deadly typhoons, devastating floods and severe droughts, show urgent action on emission cuts is needed.

The extreme weather includes the drought and heat waves that struck the US this year.

One consequence of the melt is the slow but continuous rise in the ocean level that threatens coastal areas.

Another result is the likely release of large amounts of methane - a greenhouse gas - trapped in the permafrost under Greenland's ice cap, the remains of the region's organic plant and animal life that were trapped in sediment and later covered by ice sheets in the last Ice Age.

Business opportunity

Methane is 25 times more efficient at trapping solar heat than carbon dioxide, and the released gases could in turn add to global warming, which in turn would free up more locked-up carbon.

"The implications are enormous and also mysterious," said environmentalist Bill McKibben, co-founder of, a global non-governmental organisation focused on solving the climate crisis.

For Peter Schlosser, an expert with the Earth Institute at Columbia University, the impact of the polar ice cap melt is hard to determine because "the Arctic is likely to respond rapidly and more severely than other part of the Earth".

"The effects of human induced global change are more and more visible and larger impacts are expected for the future," he said.

Some see the Arctic melt as a business opportunity - a chance to reach the oil and gas riches under the seabed, and a path for ships to shorten the distance between ports and saving time and fuel.

According to the US Geological Survey, within the Arctic Circle there are some 90 million barrels of oil - 13% of the planet's undiscovered oil reserves and 30% of its undiscovered natural gas.

The potential bounty that has encouraged energy groups like Royal Dutch Shell to invest heavily in the region.

Greenpeace International head Kumi Naidoo said that oil companies have thwarted governments from taking action to cut back on greenhouse gas emissions.


"Why our governments don't take action? Because they have been captured by the same interests of the energy industry," Naidoo said.

Anne Siders, a postdoctoral researcher at Columbia University's Centre for Climate Change Law, warned against the "temptation" of sending ships through the area.

The new shipping lanes are dangerous to use because there are plenty of ice floes and little infrastructure for help in case of an accident - which in turn increases the insurance costs.

Another consequence of global warming is that, as the oceans warm, more cold-water fish move north, "which means more fish will be taken out of their ecosystem," said Siders.

Caroline Cannon, a leader of the Inupiat community of Alaska, reminded the participants that her indigenous community, including her nine children and 25 grandchildren, depend on Arctic fishing and hunting for survival.

"My people rely on that ocean and we're seeing dramatic changes," said Cannon. "It's scary to think about our food supply."

  • cindy.wrathex.ruthven - 2012-09-20 10:05

    Nobody and everyone is to blame, nature will take its course. However the planet has over 7 billion humans creating heat energy and pollution in various forms - thus I say again, nobody and everyone is to blame, this is us (humanity) building our civilisation and we ignored the greenies who warned us all about global warming, most of us just carry on with our lives, regardless of the obvious signs and warnings. Humanity has reached a certain momentum and it just can't be slowed down, unfortunately I think we have reached the tipping point and I foresee plenty of terrible suffering and heartache in decades to come when nature reacts to our growing global population and the damage we do along the way.

      zaatheist - 2012-09-20 10:19

      I agree. The only country to actually try to do something about the problem is China.

      peter.buckton.71 - 2012-09-26 17:30

      My sentiments is shared with yours. Humans is and will destroy the planet and themselves.

  • rob.gunning.1 - 2012-09-20 10:32

    Caroline Cannon can go overpopulate another region of the world.

  • jan.vanderwesthuizen.370 - 2012-09-20 11:07

    Nine children and trying to save the world?

  • stefan.vanderspuy - 2012-09-20 11:10

    Take up fishing as a hobby and teach your kids. And take a liking to raw fish.

      LanfearM - 2012-09-20 11:46

      What fish? The way we are trawling there won't be any left. Raw fish is very good and yummy.

  • karien.haasbroek - 2012-09-20 22:21

    In the end (while we will drag many species down with us) mother nature will survive well after we have killed ourselves. Maybe the world would be better off without humans.

  • jeevadotnet - 2012-09-26 12:43

    What a bs article. LOL. They clearly failed to mention how the Antartica ice is GROWING again. I read an article the other day where they warn people not to believe all this Artic-only crap, since they only tell you half to story (the "scary" parts_ and not the full picture. P.s. Greenpeace = terrorists.

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