Drought is taking its toll on the water system that quenches the thirst of Brazil’s largest city, Sao Paulo.
A new checklist will help San Francisco protect $25 billion worth of infrastructure from rising seas.
Massachusetts and California lead the U.S. in energy efficiency, according to annual ranking.
European Union will decide this week how hard the continent will work to slow global warming.
Discovery of a semi-lifeless glacier in southeastern Iceland creates a new zombie class of frozen rivers of water.
El Niño ups the odds of flooding in some spots, but that information could provide opportunities.
The "odds are good" that 2014 will be the warmest year in the books, fueled by record ocean warmth.
The frost-free season is growing longer across the U.S. overall. Check the trend in your city.
Tornadoes are seeming to cluster together so that there are fewer days with tornadoes, but more tornadoes on the days that do have them.…
All regions of the continental U.S. have seen the frost-free season, defined as the stretch between the last below-32°F reading in the spring…
September 2014 was the warmest September since 1880, updated NASA data shows.
Expansion of Antarctic sea ice heralds ocean changes that could trap heat and accelerate ice sheet melting.
Rising CO2 levels could spell disaster for certain fish species according to recent research.
Cyclones have been quietly costing the world for decades, costs that could grow due to climate change.
Floods during high tide have become common in many coastal cities, and they're about to become downright routine.
Future wind and solar projects and metals used to build them will have a low environmental impact, study says.
For the third year in a row, Antarctic sea ice has hit a record maximum winter extent.
Normally, 20 percent of California’s power comes from hydroelectric sources. But not anymore.
Study finds the upper levels of the planet’s oceans have been warming much faster than previously realized.
Global warming may increase the overall amount of freshwater flowing in rivers worldwide by about 15 percent.