The gas plays a powerful role in driving up global temperatures.
A new study published in Nature may have ended a long scientific debate about the key source of rising methane levels in the atmosphere.
It found that methane emissions from human activities — mainly fossil fuels — are probably 25 to 40 per cent higher than previously estimated, while natural sources of methane emissions are up to 90 per cent lower than previously estimated.
Climate activists have found plenty to be angry about at this year’s UN climate talks, which are scheduled to conclude in Madrid tonight. From youth groups to indigenous people, civil society has been more riled than in previous years, as the disconnect grows between momentum on the streets and the slow progress of the negotiations.