Water touches virtually every aspect of human society, and all life on earth requires it. Yet, fresh, clean water is becoming increasingly scarce — one in eight people on the planet lack access to clean water. 

Substantial cuts in global greenhouse gas emissions could be achieved by raising water levels in agricultural peatlands, according to a new study in the journal Nature.

Central Africa is home to the world's second-largest area of dense tropical rainforest. 

The disastrous consequences of climate "tipping points" could be averted if global warming was reversed quickly enough, new research suggests.

Scientists have spotted the largest flare ever recorded from the sun’s nearest neighbor, the star Proxima Centauri.

Wildfire smoke can trigger a host of respiratory and cardiovascular symptoms, ranging from a runny nose and cough to a potentially life-threatening heart attack or stroke.

Floodwaters are not what most people consider a blessing. But they could help remedy California’s increasingly parched groundwater systems, according to a new Stanford-led study.

A fire in Central Park seems to appear as a smoke plume and a line of flames in a satellite image. 

Satellites such as the NASA and USGS Landsat 8 can help scientists identify where an algal bloom has formed in lakes or rivers.

Forecasters are excited about the potential for using aerial images for post-storm damage surveys.