Wednesday , January 20 2021

Greenland methane releases greenhouse gases



Greenland's ice sheet extends largely to methane gas, which is one of the largest greenhouse gases, shows scientific studies. Greenland Ice Sheet is a kilometer of ice and it is settled on the mainland. Increased melting rate with global warming, which affects the level of the ocean, unlike the ocean ice.

An international team of researchers led by Bristol University came into the camp for three months in front of the Greenland Ice Sheet, which investigates the dissolved water dissolved in a massive basin over 600 square kilometers in dissolved months. Using advanced technological sensors to measure methane in fusion water in real time, they have noted that the above gas continually emerges from the lower part of the ice.

They calculated that at least six tons of methane was taken from this part of the ice sheet to their measuring place, equivalent to methane released by about 100 cows.

Professor Gemma Wadhham, director of the University of Brightol University's Cabot Institute for the Environment, said in research, "One of the main discovery is that most of the methane produced under the snow escapes from the Greenland Ice sheet. Before the major and fast rivers can oxidize it to CO2, methane The general gas basin that normally reduces its greenhouse heating power. "

After water vapor and carbon dioxide (CO2), methane gas (CH4) is the third most important greenhouse gas in the atmosphere. However, although present in lower concentrations than CO2, methane is about 20-28 times more efficient. Therefore, there is the potential to create uneven effects at atmospheric temperatures in small amounts.

Most of the Earth's methane is produced by microorganisms, which in the absence of oxygen, the organic matter is CH. 4, mainly on wetland and agricultural land, for example, as well as cows and other rummants and padys stomachs. The remaining fossils come from fuel, such as natural gas.

Although some methane was invented in the Greenland Ice Course and in some satellite Antarctic ponds earlier, this continuous production of methane from the ice surface, which is several kilometers thick. Chief writer, Gillum Lamarch-Gagan, commented: "Now we can clearly see that active micro-organisms that live around the ice are not only alive but also affect other parts of the Earth's system." This sub-continental methane is a biomarker. Life in these different settlements. "Most studies on methane sources focus on frozen soil," permafrost ", which passes global warming in sub-localized places, such as Siberia and Alaska, and frees methane when they occur.

More heat Until now it was believed that Methane only came from the ground.


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