Newlight has developed a material—made by microbes—that uses methane to make everything from utensils to purses to glasses. At a new production facility in Huntington Beach, California, a 50-foot-tall stainless steel tank is filled with 15,000 gallons of salt water, and inside microbes are turning methane—a potent greenhouse gas—into a new material that could simultaneously help tackle the challenges of climate change and ocean plastic.