Which the greenhouse gas will be released the most into the atmosphere and intensify the global warming due to the melting of tundra?.

Methane is non-toxic and poses no danger when inhaled in limited amounts.
However, when large amounts of natural gas or methane displace the air, it can run out of oxygen and suffocate.
It is mainly used as a fuel to generate heat and light.
It can also be used in the formation of organic chemicals.
Methane can form from the decay of natural substances and is commonly found in landfills, wetlands, septic tanks and sewers.
The largest sources of anthropogenic methane emissions in the United States are oil and gas systems, livestock enteric fermentation, and landfills.
Methane has more than 80 times the warming potential of carbon dioxide for the first 20 years after entering the atmosphere.
Methane sets the pace of warming in the short term, even if the impact of CO2 lasts longer.
At least 25% of global warming today is caused by methane from human activity.

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