Stemming the methane leaks from landfills, oil fields, natural gas pipelines and more is one of the most powerful levers we have to quickly slow global warming. T The threat was invisible to the eye: tonnes of methane billowing skyward, blown out by natural gas pipelines snaking across Siberia. In the past, those plumes of potent greenhouse gas released by Russian petroleum operations last year might have gone unnoticed. But armed with powerful new imaging technology, a methane-hunting satellite sniffed out the emissions and tracked them to their sources . Thanks to rapidly advancing technology, a growing fleet of satellites is now aiming to help close the valve on methane by identifying such leaks from space. The mission is critical, with a series of recent reports sounding an increasingly urgent call to cut methane emissions. While shorter-lived and less abundant than carbon dioxide, methane is much more powerful at […]