California debates listing western Joshua tree as threatened

California officials are weighing whether to list the iconic western Joshua tree as a threatened species, a designation that would make it harder to remove the trees for housing, solar or other development projects.

Carbon dioxide levels in atmosphere surpass key milestone

Climate scientists say it's "like watching a train barrel down the track towards you in slow motion. It’s terrifying."

Hotter nights due to climate change will cost us sleep, study suggests

By the year 2099, hotter “suboptimal temperatures” may reduce sleep by 50 to 58 hours per person each year, according to a new study of adults from around the world.

4 California wildfires rage during hot, windy weekend

Four different wildfires were burning throughout California this weekend. Hot and windy conditions made it difficult for fire crews to fight the blazes.

Laguna Niguel fire: 'Coastal Fire' torches homes, all evacuations lifted

A massive fire, called the "Coastal Fire," engulfed more than a dozen multimillion-dollar mansions near the Laguna Hills area in Orange County.

Plants you can't kill
video

Plant and garden expert Marlene Simon talks with Bill Anderson about house plants that are difficult to kill.