A landfill in Italy with a methane capture system. (Credit: newphotoservice/Shutterstock)

A new analysis finds that .2 percent of all California methane emitters — individual pipes emitting or leaking the greenhouse gas — account for more than a third of the state’s methane production.

Nearly half of these methane sources, dubbed “super-emitters,” come from landfills. Dairies and the oil and gas industry account for a quarter of discharge sites each. Ideally, pinpointing these emitters w