Explainer

How the Hormuz Crisis Is Driving a Biofuels Boom

A worker pours a container of used cooking oil to be recycled into biodiesel at a food shop Langkawi, Malaysia.Photographer: Mohd Rasfan/AFP/Getty Images

Demand for biofuels has been growing in many parts of the world. Governments, particularly those in countries with big farming sectors, have viewed crop-based fuels as a way to support domestic agriculture, cut transport fossil-fuel emissions and help address climate change.

The energy crunch caused by the closure of the Strait of Hormuz has created a further incentive to boost production: energy security. Biofuels can’t fully replace petroleum, but they can be blended into gasoline and diesel, allowing countries to stretch existing fuel supplies.