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environmental chemistry 15. In 2020, a heat wave swept across Siberia. Throughout April 2020, temperatures were between 8 and 10 degrees above normal, but in
environmental chemistry
15.
In 2020, a heat wave swept across Siberia. Throughout April 2020, temperatures were between 8 and 10 degrees above normal, but in May the temperature rose to 30C in places. The explanation for the extreme temperatures is that global warming amplifies natural weather anomalies and produces extreme weather. The thawing of the permafrost in Siberia then proceeds even faster, which leads to increased emissions of the greenhouse gases methane and nitrous oxide that have been bound in the tundra. There may be as much as 1400 Gt (gigatons) of methane hydrate (CH4-6HO) frozen in land-based ice in the northern hemisphere. If these methane hydrates are released, how much does the concentration of methane in the atmosphere increase (disregarding removal processes)? Enter the answer in ppb (parts per billion calculated as volume).
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