The South Pole is the last place to detect 400 ppm of carbon dioxide in the air.
You can't sneak a gas leak past NASA.
Right now, it’s just talk.
And his or her decision could last a lifetime.
Surprisingly vibrant reefs signal a hopeful future for conservation efforts.
A new study calculates the value of the trees that line the state’s roads.
The chamber’s new campaign is part of a larger right-wing push to kneecap the rooftop solar industry.
El Niño winters normally flood the state with rain and snow -- but this one was different.
Radar measurements of two sinkholes in West Texas suggests they're still growing.