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California’s mountain snowpack has long acted as a free, natural water reservoir. Each winter, snow builds up in the Sierra Nevada and melts slowly in spring, helping fill rivers, support wildlife, and supply communities across the state.

But researchers are seeing troubling changes. New findings suggest this vital water source is becoming less reliable, a warning sign in a warming world, the Public Policy Institute of California reported.

Rural America is a long way from Taiwan. But cyber power is no respecter of geography. Should China make good on its repeated threats to reunify the island by force, the utilities that provide water and power to small towns all over the United States may find themselves on the digital front lines of a 21st century superpower war.

Hackers linked to China have accessed the IT networks of hundreds of small and medium-sized U.S. water systems and other utilities with a view to sabotaging American water and power supplies in the event of a conflict, CBS reported this week, detailing a threat that U.S. officials warned of two and a half years ago.

Heat-trapping carbon dioxide levels in the atmosphere jumped by the highest amount on record last year, soaring to a level not seen in human civilization and “turbo-charging” the Earth’s climate and causing more extreme weather, the United Nations weather agency said Wednesday.

The World Meteorological Organization said in its latest bulletin on greenhouse gases, an annual study released ahead of the U.N.’s annual climate conference, that C02 growth rates have now tripled since the 1960s, and reached levels not seen in at least 800,000 years.

Southern California water leader Shivaji Deshmukh will be the next general manager of the Metropolitan Water District of Southern California, the nation’s largest drinking water provider, following a unanimous vote today by the agency’s board of directors.

Deshmukh will become Metropolitan’s 16^th general manager in its nearly 100-year history, replacing retiring general manager Deven Upadhyay.

Gov. Gavin Newsom has vetoed legislation that would have required data centers to report how much water they use.

New data centers have been rapidly proliferating in California and other western states as the rise of artificial intelligence and growing investments in cloud computing drive a construction boom. The centers, full of equipment, generate lots of heat and can use large quantities of water to cool their servers and interiors. Many companies don’t reveal how much they use.