Australia’s iconic Great Barrier Reef is experiencing its third coral bleaching event in just five years. 

There may be a hidden cost to urban expansion: more flooding.

Tropical Cyclone Harold brought heavy rains and hurricane-force winds to Vanuatu and was moving toward Fiji when NASA-NOAA’s Suomi NPP satellite provided forecasters with an image of the storm.

Every spring in the Northern Hemisphere, the ocean surface erupts in a massive bloom of phytoplankton.

Twin satellites are assessing the state of soil moisture and groundwater on the continent and around the world.

Scientists at Caltech and Occidental College have discovered a methane-fueled symbiosis between worms and bacteria at the bottom of the sea, shedding new light on the ecology of deep-sea environments.

Extreme rainfall has become increasingly common in metropolitan São Paulo, Brazil. 

NASA-NOAA’s Suomi NPP satellite passed over the Southern Pacific Ocean and provided forecasters with a visible image of newly formed Tropical Cyclone Harold. 

Switzerland’s Federal Council has decided that the country should become carbon-​neutral by 2050.

At 500 meters deep, the Makhtesh Ramon is the world’s largest erosion crater.