Human-made fertilizers have greatly boosted crop production, letting farmers grow more food on less land. But this uptick in fertilizer use has come at a cost: planet-warming greenhouse gas emissions.| MIT Climate Portal
Concrete is among the world’s most consumed materials—second only to water. It also produces large amounts of heat-trapping greenhouse gases.| MIT Climate Portal
Greenhouse gases are gases—like carbon dioxide, methane, and nitrous oxide—that keep the Earth warmer than it would be without them.| MIT Climate Portal