Study Finds Lake Tahoe Warming Due To Climate ChangeLake Tahoe is among hundreds of lakes worldwide that researchers say are warming due to climate change.
Nearly 200 Nations Pledge To Fight Climate Change In Historic Global PactNearly 200 nations adopted the first global pact to fight climate change on Saturday, calling on the world to collectively cut and then eliminate greenhouse gas pollution but imposing no sanctions on countries that don't.
UN Weather Agency: It's Record Hot Out There This YearBecause of man-made global warming and a strong El Nino, Earth's wild weather this year is bursting the annual heat record, the World Meteorological Organization announced on Wednesday.
Global Warming 'A Moral Imperative' Says UC President Napolitano At Climate Change SummitReducing the human carbon footprint is a "moral imperative," University of California President Janet Napolitano said Tuesday as she vowed to turn the system's 10 campuses into a living laboratory for solutions that can be scaled up to state, national and global levels.
Gov. Brown Signs Aggressive Climate Change LawCalifornia Gov. Jerry Brown signed an ambitious bill on Wednesday to combat climate change by increasing the state's renewable electricity use to 50 percent and doubling energy efficiency in existing buildings by 2030.
Gov. Brown, Democrats Change Climate Proposal, Remove Mandate To Cut Oil Use By 50%Gov. Jerry Brown and legislative Democrats announced Wednesday that they are scaling back their ambitious proposal to address climate change amid ongoing opposition from the oil industry and some lawmakers.
California's Climate Fight Comes Down To Gov. Brown's Negotiations With His Own PartyCalifornia Gov. Jerry Brown has to break through a logjam in his own party in the final week of the legislative session.
El Niño Helps Make July Earth's Hottest Month On RecordRecords go back to 1880, but nine of the 10 hottest months on record have happened since 2005.
Silicon Valley Scientists 'Brightening' Clouds To Combat Climate ChangeIn a Silicon Valley research lab, scientists are working on what might be considered the option of last resort for global warming.
Poll Finds Most Californians Say Climate Change Linked To DroughtNearly two-thirds of Californians believe global warming is having an impact on the state's persistent drought, sharing Gov. Jerry Brown's environmental concerns as he presses for tougher climate change standards, according to a new statewide poll released Wednesday.
Gov. Brown Says World Has Reached 'Tipping Point' On Global Warming At Vatican Climate SummitAt a climate summit at the Vatican, Gov. Jerry Brown said the world may have reached a tipping point on global warming and that humanity must reverse course or face extinction.
Study Suggests Humans Are Behind Mass Extinction Of AnimalsA mass extinction - the sixth of its kind in our 4.5-billion-year history - is well underway and humans are to blame.