Drought is taking its toll on the water system that quenches the thirst of Brazil’s largest city, Sao Paulo.
El Nino probably won't bring California drought-busting winter rains, but the news may not be all bad.
A new checklist will help San Francisco protect $25 billion worth of infrastructure from rising seas.
The polar vortex spurred a spike in CO2 emissions in 2013 as people cranked up their heat last winter.
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.
A new climate report from the Pentagon, tornado trends, earthquakes and more in this week's top climate news.
Hurricane Gonzalo was an imposing site in images, while the sun cast a shadow across a cold front.
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.…
The bouts of polar vortex incursions that happened last winter are unlikely this year, NOAA says.
A flurry of hurricane activity in the Atlantic basin is linked to a phenomenon called the MJO.
Despite a wet September out West, drought is still a major concern as heat continues to bake the region.
The Pentagon's new climate plan shows how the agency plans to address the impacts of global warming.
Expansion of Antarctic sea ice heralds ocean changes that could trap heat and accelerate ice sheet melting.
Climate change is a major driver in the precipitous decline of a key Yellowstone tree species.
Rising CO2 levels could spell disaster for certain fish species according to recent research.
A Blood Moon, King Tides and a monstrous looking typhoon in the Pacific made for amazing images.
Cyclones have been quietly costing the world for decades, costs that could grow due to climate change.