DR KATEY WALTER: The methane then heats the atmosphere, contributing to global warming, which then causes more permafrost to melt and more methane to be produced, and it’s sort of this vicious feedback cycle. As temperatures rise worldwide, more gases are released from the melting permafrost, contributing to the greenhouse effect in Earth's atmosphere. The Arctic is warming twice as fast as any other place on Earth and The Guardian reported that it is yet to begin freezing for the winter, already surpassing records for the latest date for sea ice formation after melting unusually early this spring. Warming and thawing of surface soil weakens the frozen cap, resulting in the blowout and explosion that causes the craters. A recent study co-authored by a member of the expedition. “The discovery of actively releasing shelf slope hydrates is very important and unknown until now,” Semiletov said. A different hole was also spotted in the Yamal peninsula in northwest Russia and was linked to melting permafrost causing methane to build up under the surface and a subsequent explosion… Another similar, even more powerful explosion had occurred in 2013, when a blast was heard over a distance of 62 miles. I'm a freelance geologist working mostly in the Eastern Alps. Methane can derive from inorganic sources, the Yamal peninsula is Russia’s largest natural gas field, or organic processes, as a waste product of microorganisms living in the soil. The current record high temperature north of the Arctic Circle was set in Fort Yukon, Alaska, in 1915. Following another summer with record-breaking temperatures, this time over 37°C, the latest crater was spotted by a TV crew flying overhead for work on an unrelated project and was subsequently investigated by a team of researchers from the Russian Academy of Sciences. The permafrost contains organic matter, and thawing will enable bacterial decomposition that will release methane as a byproduct of anaerobic respiration. This is a new page,” said Igor Semiletov, chief scientist onboard the Akademik M. Keldysh research vessel that’s part of a multi-year Russian-Swedish International Siberian Shelf Study expedition. Please consider making a donation to The Moscow Times to help us continue covering this historic time in the world’s largest country. A recent study co-authored by a member of the expedition found that the loop could be activated if the Arctic warms by just a few degrees. For The First Time, Scientists Successfully Extract DNA From Insects Embedded In Tree Resin New Theory Suggests Tunguska Explosion Was A … The methane emissions in the Arctic, fueled by … Scientists voiced concern that greenhouse gas emissions from melting permafrost and the Arctic seafloor could accelerate climate change. Scientists found the potent greenhouse gas bubbling from a depth of 350 meters in the Laptev Sea, with surface-level concentrations that vent into the atmosphere between four and eight times the normal amount. The region's rate of warming is surpassing current climate models, fueling heat waves and sea ice melt. A Siberian Times article suggested that 7,000 underground gas bubbles are set to "explode" on the peninsulas of Yamal and Gydan as a result of melting permafrost. I'm a freelance geologist working mostly in the Eastern Alps. It is by far the largest in terms of both depth (31 meters or 102 feet) and diameter. A new source of methane discharge has been discovered in the Arctic Ocean near eastern Siberia, raising concerns of a “new tipping point” that could speed up the pace of global warming, The Guardian reported Tuesday. As the climate warms, the superficial layers of the permafrost are melting and microbial activity in the soil starts to rise exponentially. “The discovery of actively releasing shelf slope hydrates is very important and unknown until now. Researchers believe that the craters are formed when long-frozen earth known as permafrost begins to melt and release trapped methane gas, according to Popular Mechanics. Permafrost is soil that is frozen year-round, and typically, it’s been that way for thousands of years. This methane is trapped underground, forming pockets of flammable gas. Since then, scientists have identified 17 other large craters. Latest videos. The problem with methane . But geology is more than a historic or local science, as geological forces shaped and still influence history worldwide. Climate data from Siberia show an increase of average temperatures in the last decade. Many seem to be filled with peated water, and the locals refer to them as "black holes." In 2016, scientists had reported only fifteen of such mounds. Scientists fear that this mechanism could become a self-reinforcing process. Professor Bogoyavlensky has been urging that scientists look for ways to release the pent-up gas before an explosion occurs. The Moscow Times’ team of journalists has been first with the big stories on the coronavirus crisis in Russia since day one. Semiletov’s expedition. that the loop could be activated if the Arctic warms by just a few degrees. We wouldn’t be able to produce this crucial journalism without the support of our loyal readers. I graduated in 2007 with a project studying how permafrost, that´s frozen soil, is reacting to the more. “At this moment, there is unlikely to be any major impact on global warming, but the point is that this process has now been triggered,” Swedish scientist and study co-author Örjan Gustafsson told The Guardian from the vessel. The head of Russia's weather service says climate change and a change in atmospheric circulation are to blame.
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