Polyester, an oil-based synthetic fiber, is used in 60 percent of our garments today, more than double the amount used in 2000. It consumes nearly 350 million barrels of oil every year and accounts for 282 billion kilograms of carbon dioxide emissions, three times higher than the amount for cotton, which will make it increasingly difficult for the world to meet the two- degree Celsius climate goals set down in the Paris Agreement.

