Global Warming

Methane Alarm

The global level of the potent greenhouse gas methane has reached a record high, growing at twice the rate of the long-term average in what scientists are calling a “fire alarm moment” for curbing climate change.

NOAA says methane concentrations reached a record 1,900 parts per billion in September, the highest in almost four decades of regular monitoring. The gas is 80 times more potent in contributing to global heating than carbon dioxide.

While most of the rise has occurred from the gas being released through changes in wetlands and by agriculture in the tropics, leaks from oil and gas operations are also major contributors. More than 100 countries pledged to cut their methane emissions at last year’s COP26 climate summit.

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