While that one-degree of heat made you take off a sweater, segments of the Earth known as permafrost began a meltdown. Permafrost is a condition whereby sections of the Earth’s surface have remained at a temperature below freezing (0 degrees Celsius) for at least two years. Literally, it means permanently frozen soil. In actuality, most permafrost regions have been frozen for thousands of years. A large portion of the Arctic is permafrost. During summer months these areas seem to be thawed as they permit a two to twelve foot layer of soil to grow vegetation. But beneath that summer season lays a still frozen core. These frozen strata of the Earth lock away huge amounts of gaseous content with the highest concentrations of gases held in check by permafrost being Carbon dioxide and Methane gas. That one-degree increase in overall temperature is allowing millions of underground acres of permafrost to defrost and release even more greenhouse gas.


  visit http://globalwarming.com for MORE INFORMATION regarding Global Warming Issues.