These phenomenal clouds were observed last month on the south side of Deer Mountain in Rocky Mountain National Park
After recovering last year, the water level of Lake Mead - the country's largest man-made reservoir - is dropping once again.
A recently launched NASA satellite captured a high-resolution view of the Earth, known as a "Blue Marble" image.
Research indicates trees may have a more difficult time adapting to climate change than previously thought.
A new study finds that, in parts of the Southwest, warmer and drier weather forecast for the future is bound to increase dust formation.
NASA says two-thirds of its facilities in San Francisco Bay are at risk from sea-level rise, according to new research.
A group of students from the University of Montana is learning first-hand about how climate change may threaten Southeast Asia.
Recent climate changes have increased Alaskan wildfires, releasing greenhouse gases that had been locked in the soil.