I just read that San Francisco, in another moment of environmental health leadership (brilliance, I would call it), just launched the most ambitious recycling program in the nation. For a city that already diverts 72 percent of its trash from landfills, San Francisco didn’t sit on its laurels. Mayor Gavin Newsom promoted the law that adds mandatory composting to the program and forwards the goal of achieving 75 percent diversion and zero waste by 2020.

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