Though not as prevalent in the atmosphere as carbon dioxide, methane is a far more potent greenhouse gas.

Spring is coming, and with it comes the promise of warmer weather, longer days and renewed life.

A cold front, warm front, and high-pressure system left their signatures in the clouds.

On Feb. 18 a new era began in an international effort to improve air quality science and forecasting around the world to help reduce the impact of air pollution on human health and the environment.

NASA's Orbiting Carbon Observatory-2 (OCO-2) measures the amount of carbon dioxide in the atmosphere over urban areas to help researchers better characterize the sources and sinks of the greenhouse gas.

Researchers find evidence of a cosmic impact that caused destruction of one of the world’s earliest human settlements.

Some species will be exposed to more cold winter air without the insulating protection of snow cover.

February was wetter and warmer than average.

Scientists are concerned that the growth of commercial-scale agriculture on farms in tropical regions is increasing the global nitrogen footprint.

By 2030, global warming alone could push Chicago to generate 12% more electricity per person each month of the summer.