This is what's called a "positive feedback", something that adds to a trend or force. In this case melting ice makes it possible to extract more oil, leading to more CO2 and even faster melting....
Oil race at top of the world
As Russia pursues claim to huge Arctic reserves, U.S. is sidelined
By Alex Rodriguez
Tribune foreign correspondent
Published June 10, 2007
ST. PETERSBURG, Russia -- A new Klondike may be waiting at the top of the world, where geologists believe a quarter of the globe's undiscovered oil and natural gas lies trapped within the rock strata underneath the ice-encased Arctic Ocean.
It's a trove of energy wealth that sits unowned and unexplored, a bonanza being readied for a rush of claims thanks to climate change. Global warming is steadily wearing away the polar cap, scientists say, making the advent of Arctic energy exploration increasingly likely.
Inside a dingy, four-story building in the heart of St. Petersburg, a team of scientists is working feverishly to prove that a large chunk of that energy is rightfully Russia's.
If geologists at the Russian Research Institute for Ocean Geology and Mineral Resources are right, the Kremlin could add as many as 10 billion tons of Arctic oil and natural gas to reserves that already make Russia one of the world's most formidable energy powerhouses.
The Arctic's potential storehouse of oil and gas likely won't be tapped for decades. But Moscow is looking ahead to a time when depleted oil and natural gas fields will force energy suppliers to scour for new hydrocarbon sources, even if they're under the polar ice cap.
"Experts say that after 2016, oil production will drop tremendously," said Anatoly Opekunov, the institute's deputy director. "Every country, including Russia and the U.S., is thinking about this."
Russia's eagerness to secure the rights to Arctic energy worries many policymakers in Washington, who argue that the U.S. is powerless to intervene while it remains mired in a 13-year debate over ratification of a United Nations treaty governing international maritime rights.
more:
http://www.chicagotribune.com/news/nationworld/chi-arctic_bdjun10,1,1491587.story