Worldwide emissions of methane have hit the “highest levels on record”, according to an international team of scientists. The finding comes from the latest update to the Global Methane Budget, an international collaboration that estimates sources and sinks of methane around the world. Their estimates for 2017 – the most recent year for which a full budget has been produced – show that annual global emissions hit almost 600m tonnes. That is around 9% higher than the 2000-06 average. By the end of 2019, the concentration of methane in the atmosphere reached around 1875 parts per billion (ppb), the researchers say – more than two-and-a-half times pre-industrial levels. Breaking down the different sources, the budget shows that rising emissions from “both the agriculture and waste sector and the fossil fuel sector are likely the dominant cause of this global increase”. This highlights the “need for stronger mitigation in both areas”, the researchers say.
Carbon Brief 14th July 2020 read more »
Independent 14th July 2020 read more »