Record Rise of Climate-Warming Methane in 2021: UN

Methane concentrations in the atmosphere registered their biggest-ever increase in 2021 as all three main greenhouse gases extended their record highs, the United Nations said Wednesday.

The UN's World Meteorological Organization recorded the biggest year-on-year jump in methane concentrations since systematic measurements began nearly 40 years ago, and said the "reason for this exceptional increase is not clear, but seems to be a result of both biological and human-induced processes"._AFP