The world’s largest dairy producers and coffee chains are “turning a blind eye” to their methane emissions, despite being responsible for a large portion of one of the world’s “most potent and solvable drivers of global warming,” according to a recent investigation by industry watchdog Changing Markets Foundation (CMF).The report audited 20 global corporations, including dairy giants like Arla Foods, FrieslandCampina, and DMK Group, and coffee chains like Starbucks, Dunkin’ Donuts, and Costa Coffee. The combined annual revenues of all audited companies are over US$420 billion — more than the GDP of Denmark.