Add Yahoo as a preferred source to see more of our stories on Google. Heavy rain from a persistent atmospheric river pattern continues to impact California this week, triggering flooding, road ...

Rainmaker Technology is spending hundreds of thousands of dollars on lobbying and gold-framed Metro ads in a play for ...

Drought-plagued Arizona could see state-funded drones spraying microscopic silver iodide particles into mountain clouds to boost snowfall if proponents get their way.