Nature Coatings makes a petroleum-free alternative to a widely used—and particularly toxic—black dye. But the problem it’s solving isn’t one the fashion industry is desperate to fix. Nature Coatings makes a petroleum-free alternative to a widely used—and particularly toxic—black dye. But the problem it’s solving isn’t one the fashion industry is desperate to fix. Read More Gear, Gear / Trends, Dye Trying Wired