California plans to phase out new gas heaters by 2030
The California Air Resources Board approved a plan to phase out sales of new gas furnaces and water heaters in the state by 2030.
Environment
5 numbers that show Hurricane Fiona's devastating impact on Puerto Rico
Experts say it will still take some time before the public knows the full impact of Hurricane Fiona on Puerto Rico. But early figures indicate a tough road ahead as residents attempt to recover.
Global leaders meet in Pittsburgh for climate talks
Officials from around the world are meeting in Pittsburgh to discuss global climate change efforts. The event comes as leaders prepare to meet this fall for the next U.N. climate summit in Egypt.
Extreme heat, flooding and wildfires: How climate change supercharged the weather
Washington Post reporter Brady Dennis warns our aging infrastructure systems weren't built to withstand the stresses of climate change: "There is a certain amount of suffering that we can't avoid."
Where the Colorado River crisis is hitting home
A reckoning has come for cities and farms in the desert Southwest that were built to rely on the Colorado River.
Puerto Rico is in the dark again, but solar companies see glimmers of hope
Around 50,000 solar and battery power systems have been installed on homes in Puerto Rico in recent years, and most seemed to continue working during Hurricane Fiona.
Encore: Apache tribes in Arizona are leading the way in saving Emory oak trees
As Emory oak trees in parts of Arizona disappear, members of several Apache tribes are working on a collaborative plan with the U.S. Forest Service and researchers to preserve them.
The number of ants on Earth has a mass greater than all birds and mammals combined
Researchers compiled hundreds of studies of tree-dwelling and ground-dwelling ants to make their estimate of 2.5 million ants for every human.
States dependent on Colorado River wonder if desalination could help the water supply
Severe drought has states dependent on the Colorado River looking at alternatives. Desalinating seawater may be a viable supplement to some areas, but likely can't fix much of the river's deficit.
Rescue efforts are beginning in Tasmania to save more than 200 beached whales
A stranded whale pod on Tasmania's west coast appears to be pilot whales and at least half are presumed to still be alive, local government officials said Wednesday.