After recovering last year, the water level of Lake Mead - the country's largest man-made reservoir - is dropping once again.
The Obama administration announced its rejection of the controversial Keystone XL pipeline
Scientists feel we can fix the problem of ocean acidification but it might cost trillions a year and do more harm than good.
A new study on El NiÃƒÂ±o and La Niña doesn't bode well - and you don't have to know what those terms mean to understand why.
In the short run, there is good news about Colorado River Basin water supplies, but climate change and increasing water demand point to long-term problems.
A new study finds unusually large losses of springtime snow cover in the West in recent years, raising concerns about water supplies.
Drought weary residents of New Mexico and Texas are searching for rain on the horizon, as an expensive and deadly drought wears on.
An historic drought is stoking major wildfires in Texas, raising questions about whether climate change is playing a role.