If you own a vehicle in India, you’re probably already using biofuels. But while biofuels help us transition away from fossil fuels, they come with a long list of disadvantages — from worsening indoor air pollution to encouraging deforestation. In this video, The Scope breaks down the science and economics of bioenergy. We look at why countries are rushing to blend ethanol into petrol, the “food vs. fuel” debate, and why burning wood or cow dung is more dangerous than you might think.