Are tires more dangerous than exhaust gases? A recent study reveals this surprising truth, highlighting an often overlooked environmental impact. Behind each car journey lurks an invisible danger.

"EPA will use all of its enforcement tools to hold polluters ... accountable until these illegal practices stop." ...

Climate Action 15 profiles top founders, global activists, academics, and nonprofit and public-sector leaders tackling climate solutions.

Dozens of diesel vehicle models are being investigated over concerns their emissions are higher than thought, the Department ...