Explainers

Steelmaking is one of the world's most climate-polluting heavy industries, but there are many new approaches to making "clean" steel to meet the enormous demand for this material.

Electric vehicles are a cleaner alternative to gasoline- or diesel-powered cars and trucks—both in terms of harmful air pollution, and the greenhouse gas emissions that are causing climate change.

Concrete is among the world’s most consumed materials—second only to water. It also produces large amounts of heat-trapping greenhouse gases.