GLASGOW, Scotland (ESA PR) — In the first 20 years of reaching the atmosphere, methane has more than 80 times the warming power of carbon dioxide. Reducing emissions of this extremely potent gas is, therefore, one of the fastest ways of slowing the rate of global warming, at least in the short term – and at COP26, more than 100 countries have just signed up to the Global Methane Pledge, which aims to limit emissions by 30% compared with 2020 levels.