Lasers in the sky: hi-tech missions track record snowpack loss in US west

Data from missions showing critically low snowpack on mountains across the west raises alarm among experts High above the jagged peaks of California’s Sierra Nevada, the view from the cockpit is breathtaking. At first glance, the mountains appear draped in a pristine white blanket. But as the flight crew gears up for a high-stakes mission, the sensors onboard this specialized aircraft prove that looks can be deceiving. “This is a distinct dry year,” says Tom Painter, CEO of Airborne Snow Observa