Elevated levels of methane in the Arctic Facts
Unprecedented sudden release of methane, a greenhouse gas 20 times more carbon dioxide have been found on the surface of the Arctic Ocean by scientists engaged in research in the region.
Emissions struck head of the Russian research team, which already holds 20 years of observation of the seabed in the eastern Siberian shelf. Igor Semiletov claims that scientists first encounter with such a release of methane from the Arctic seabed.
In 2010, a team of scientists led by Dr. Semiletov published data by which the annual emissions of methane in the region amounted to 8 million tons, but the latest expedition showed that the data is much greater.
"Earlier, we were faced with the similar structures with a diameter of 100 meters, but never so large structures with diameters of more than 1000 meters. It is simply stunning. On a relatively small area, was discovered more than 100 sources, which should be a lot more. "
Scientists believe that in the depths of the Arctic ice hidden millions of tons of gas that extends to the relatively shallow bottom shelf of the eastern part of Siberia. There are fears that the melting of Arctic sea ice in summer, and the observed increase in temperature generally in the region, a large amount of methane that can be released into the atmosphere and causing serious climate change.