Cutting the super-potent greenhouse gas methane quickly and dramatically is the world’s best hope to slow and limit the worst of global warming, a new United Nations report says.
If human-caused methane emissions are cut by nearly in half by 2030, a half degree (0.3 degrees Celsius) of warming can be prevented by mid-century, according to Thursday's report by the United Nations Environment Programme.
The report said the methane reduction would be relatively inexpensive and could be achieved — by plugging leaks in pipelines, stopping venting of natural gas during energy drilling, capturing gas from landfills and reducing methane from belching livestock and other agricultural sources, which is the biggest challenge.