Why Is There More Methane in the Atmosphere?
In 2006, the scientists who monitor methane, a greenhouse gas about 30 times more potent than carbon dioxide, thought that concentrations of the gas, which had sharply risen in the 1980s, had plateaued.
“If you look at the entire record from the beginning to 2006, it looks like a chemical system that is approaching steady state,” said Edward Dlugokencky, an atmospheric chemist at the National Oceanic and Atmospheric Administration’s Earth System Research Laboratory who monitors global methane emissions.
A puzzling aspect to this flattening of the methane trend was that, starting around 2000, China and other Asian countries were experiencing rapid development.
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