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Nike has certainly had a major impact on the planet. The manufacturer of the world’s most popular trainer shoes has often come under criticism for labour conditions where the shoes are made, for SF6 (a mega-potent greenhouse gas called sulphur hexafluoride - 23,000 times more warming than carbon dioxide) that used to be in their Nike Air shoes and the overall environmental impact of all those disposable shoes on the landfills. Business Week reported at the peak of SF6 production in 1997, Nike Air footwear carried a greenhouse effect equivalent to an astonishing 7 million metric tons of carbon dioxide - about as much as the tailpipes of 1 million cars.
