Atmospheric methane removal is a category of potential approaches being researched to accelerate the breakdown of methane that is in the atmosphere, for the purpose of mitigating some of the impacts of climate change.[1]
Atmospheric methane has increased since pre-industrial times from 0.7 ppm to 1.9 ppm.[2] From 2010 to 2019, methane emissions caused 0.5 °C (about 30%) of observed global warming.[3][4] Global methane emissions approached a record 600 Tg CH4 per year in 2017.[1]