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6:15 PM  September 29, 2016

TPU scientists registered increase of methane emissions in the Arctic

© предоставлено пресс-службой ТПУTPU scientists registered increase of methane emissions in the Arctic

TOMSK, Sep 29 – RIA Tomsk. Scientists of Tomsk Polytechnic University (TPU) during the expedition to the Arctic registered increase in emissions of methane, which speaks about destruction of underwater permafrost, the press service of the university reports on Thursday. As it was reported earlier, this process accelerates global warming on Earth.

© РИА Томск. Павел Стефанский
Earlier it was reported that TPU scientists participate in the international researches of the processes happening in the shelf of the polar seas of Eastern Siberia where there are more than 90% of underwater permafrost and a large amount of hydrocarbons. They found out that underwater permafrost is unstable and from under it there are methane emissions which accelerate global warming and can lead to disaster.

It is specified that the 40-day Arctic expedition on the flagman vessel of the Far East research fleet "Academician M. A. Lavrentyev" started on September 24. It passes under the leadership of professor of the Tomsk Polytechnic University Igor Semiletov. The expedition continues a number of long-term observations of polytechnicians in the seas of East Arctic. Scientists pay special attention to degradation of underwater permafrost as to a factor of emission of methane in the atmosphere.

"The area of distribution of zones of metane megaemissions ("vultures") considerably increased in comparison with the data obtained during the period from 2011 to 2014. Such observations can demonstrate increase in speed of degradation of underwater permafrost", – quoted in the message Semiletov.

It is noted that on the basis of TPU the collaboration of 15 world universitiesis which are engaged in studying of the Arctic are formed. Experts found out that the reliable ice "stopper" interfering an exit of gas hydrates today "was worn out", and there are emissions of methane in the atmosphere. A task of scientists – is to define amount of the methane buried in the areas of the Arctic and to study its influence on climatic system.

It is added that results of an expedition will become a significant contribution to development of strategy of further researches of the seas of East Arctic. They will be discussed at the international conference in TPU on November 21-24 where scientists from 12 universities and institutes of Russia, Sweden, the Netherlands, Great Britain and Italy will take part.

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