Cal Fire added at least 2.8 million Californians to fire hazard zones. Here's how to check which zone you're in and what that ...

Half a century of oil drilling has left the Amazon rainforest scarred -and a new wave of fossil fuel extraction is coming ...

Climate change is altering growing seasons, causing plants to bloom earlier and increasing invasive species. Home gardeners can aid native ecosystems through adaptive planting.

The move will give state regulators more time to develop a plan to improve air quality in metro Denver and the region, and to ...