The 2007 Energy Independence and Security Act pushed biodiesel as an eco-friendly fuel additive, but domestic farmland couldn’t slake America’s vegetable oil thirst. Soon companies in Indonesia began slashing and burning rainforest for oil palm plantations. In 2015 those fires burned out of control, and blazing carbon-rich forests spiked CO2 levels, causing 100,000 premature deaths. Meanwhile, as Indonesia’s carbon emissions eclipse all of Europe’s, producers’ choke hold on land and local politics grows. And in the U.S., activists’ warnings remain unheeded: Even top Democrats still tout the legislation’s success.