Global warming is changing the Arctic by causing permafrost thaw, glacier melt, droughts, fires and changes in vegetation.

The declining trend was also observed by the climate models studied, but on average the relative decrease was lower in the models than in the ground measurements.

Built to help scientists understand how dust affects climate, the Earth Surface Mineral Dust Source Investigation can also pinpoint emissions of the potent greenhouse gas.

Described as the "future of agricultural research," the facility features robotics and sensor technology.

Smokey Bear is mostly right — you can help prevent wildfires — but it’s not all on you.

The preheating emissions were compared to calculated emissions from driving to determine the driving distance corresponding to the preheating emissions under current emissions standards.

Ice buildup on powerlines and electric towers brought the northern US and southern Canada to a standstill during the Great Ice Storm of 1998, leaving many in the cold and dark for days and even weeks.

The hole in the ozone layer — the portion of the stratosphere that protects our planet from the sun’s ultraviolet rays — is continuing to decrease.

As physical links between the ground and the sky, plants play an important role in shaping Earth’s weather and climate.

A recently released set of topography maps provides new evidence for an ancient northern ocean on Mars.