Global Methane Budget, 2000-2017 (2020), July 15, 2020. A new consensus update to global methane emissions reveals that atmospheric methane increased by 8.5ppb and 10.7ppb in 2018 and 2019, respectively – two of the highest annual values of the 21st century. The current concentration of atmospheric methane is more than 2.5 times higher than pre-industrial […]