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In the permafrost of the Arctic and of the Siberia is caught large "bubbles" of methane that comes released in the atmosphere esteem by now in equal amount to those of all the oceans to root cause of the climatic changes us in existence on the planet, and is a gas that it feeds the greenhouse effect in measure approximately thirty greater time of carbon dioxide. The methane concentrations are passages in the millennia from 0.3 - 0.7 ppm to approximately to 1.85 parts per million on the Arctic, therefore is an important value and that it would demand interventions of prevention even if from some time assists to "ballets" between more or less realistic figures and forecasts that have made a lot to discuss (comprised an anomalous big wave of cold in Europe). Not there is doubt however on the role of the human activities on the climatic overheating and some unexpected variations could re-enter in the picture of changeable that preview winters more colds and warmer summers in average.

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Telephone: +39 338 1809310 Date: 08/03/2010 article n°: 1217 _____________________________________________________________________________________________________