Scientists may have solved the mystery behind a top climate threat
Almost two decades ago, the atmosphere’s levels of methane — a dangerous greenhouse gas that is over 80 times more potent than carbon dioxide in the short term — started to climb. And climb. Then, in 2020, the growth rate nearly doubled.
Scientists were baffled — and concerned. … But now, a study sheds light on what’s driving record methane emissions. The culprits, scientists believe, are microbes — the tiny organisms that live in cows’ stomachs, agricultural fields and wetlands. And that could mean a dangerous feedback loop — in which these emissions cause warming that releases even more greenhouse gases — is already underway.