Climate crisis

Emissions reduction

US landfills emit way more methane than previously thought

Landfills are the third-biggest source of U.S. methane emissions. But leaks of the potent greenhouse gas are often undetected due to monitoring blindspots.

By Sachi Kitajima Mulkey  . 

Trash is flattened and spread out across a hilllside before being covered with dirt at a landfill in San Juan Capistrano
(Mark Rightmire/Getty Images)