Methane stays in the atmosphere for less time than CO2, but has a far greater warming effect over a 20-year period. PARIS: G7 chair France pushed on Monday (May 4) for faster global action to reduce methane emissions at a conference in Paris as the International Energy Agency said discharges from the fossil fuel sector remained near record levels. Using its role as rotating president of the Group of Seven industrialised powers, France convened government officials, industry leaders and experts