Oil firms push into the Arctic, since experts believe huge amounts of oil and gas under the Arctic Ocean. The Russian state company Rosneft and the U.S. oil company Exxon Mobil now want to establish in the Kara Sea oil rigs. But environmentalists warn: no one knows how to fight an oil spill could be under a sheet of ice.
For oil companies, the Arctic is a treasure trove. Unimaginable quantities of oil and gas lie under the Arctic Ocean, experts suggest - to exploit them fires the imagination of politicians and business leaders. More than a fifth of undiscovered reserves of raw materials of the earth to the researchers at the U.S. Geological Survey (USGS), according to lie in the region around the North Pole.