Officials are moving ahead with a major revitalization of the Los Angeles River – removing miles of concrete along its banks and re-greening areas now covered with pavement.

The world is in the midst of a solar power revolution. In under two decades, the solar PV industry has evolved from being niche to one poised to take on the utility incumbents as an affordable mainstream energy source.

Researchers are finding that kelp, eelgrass, and other vegetation can effectively absorb CO2 and reduce acidity in the ocean.

During that first flight in Kitty Hawk, we can be quite sure that Orville and Wilbur Wright were not thinking about how much carbon dioxide their contraption was spewing.

Insect populations are declining dramatically in many parts of the world, recent studies show.

Drought-stricken California might have a hidden water bonanza.

New advances in technology are sparking efforts to use virtual reality to help people gain a deeper appreciation of environmental challenges.

As sightings of leopards in populated areas increase, Indian authorities are trapping the animals and keeping them in captivity

The Paris climate conference set the ambitious goal of finding ways to limit global warming to 1.5 degrees Celsius, rather than the previous threshold of 2 degrees.

Unhappy with how regional authorities have failed to protect fish stocks in the Western Pacific Ocean, the small island nation of Palau has launched its own bold initiatives ...