The agency plans to analyze the cost-benefit of PM2.5 and ozone regulation without using a dollar value for lives saved.

The Danish territory holds significant stores of oil, gas, and minerals. The vast majority is still in the ground.

Neil Shea's "Frostlines" captures the terror and beauty of a region often dismissed as “big, cold, white, and far away." ...

"The Problem With Plastic" is both a call to arms and a thorough look at the far-reaching effects of plastic production.