The boom in fracking for shale gas has dramatically increased global methane emissions. Photograph: Andrew Burton/Getty Images
The boom in the US shale gas and oil may have ignited a significant global spike in methane emissions blamed for accelerating the pace of the climate crisis, according to research.
Scientists at Cornell University have found the “chemical fingerprints” of the rising global methane levels point to shale oil and shale gas as the probable source.
Methane, levels of which have been increasing sharply since 2008, is a potent greenhouse gas that heats the atmosphere quicker than carbon dioxide.