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Low-elevation snowpack across the Rocky Mountains, the Sierra Nevada and the Cascades will disappear in the coming decades if global warming continues unabated, according to a new study. The changes will cause water shortages in the region and dry out forests and grasslands, the study’s authors say.

According to the research, the snow line—the altitude above which it snows, and below which it rains—will climb as much as 800 feet in the Colorado Rockies, and 1,400 feet in the Rockies of Idaho and Wyoming by 2100 if greenhouse gas emissions continue at the current rate.

Southern California’s largest water supplier was temporarily blocked from buying sprawling farmland that could be used to help build twin tunnels under the Sacramento-San Joaquin River Delta, a court ruled Tuesday.

The state’s 3rd District Court of Appeal in Sacramento granted a temporary restraining order the day before escrow was set to close on Metropolitan Water District’s $175 million deal for 20,000 acres. The ruling delays the district’s purchase by no more than a few weeks, Metropolitan attorney Catherine Stites said.

Delta smelt have hovered close to extinction for years, but biologists say they’ve never seen anything like this spring.

“There’s nothing between them and extinction, as far as I can tell,” said Peter Moyle, a U.C. Davis biologist who has studied smelt and other Sacramento-San Joaquin Delta fish species for nearly four decades. Last week, the state Department of Fish and Wildlife released the results of spring trawling surveys that track adult delta smelt. The surveys found just handfuls of fish across the huge area where they are known to spawn.

Southern California’s largest water supplier was temporarily blocked from buying sprawling farmland that could be used to help build twin tunnels under the Sacramento-San Joaquin River Delta, a court ruled Tuesday.

The state’s 3rd District Court of Appeal in Sacramento granted a temporary restraining order the day before escrow was set to close on Metropolitan Water District’s $175 million deal for 20,000 acres. The ruling delays the district’s purchase by no more than a few weeks, Metropolitan attorney Catherine Stites said.

Now in the fifth year of an epic drought, Californians have explored ways to save water and wring it out of typical and atypical sources. The search has spanned the gamut from funding research, investing in expensive solutions like desalination plants, toying with the idea of recycling wastewater, imposing water-use restrictions, letting lawns go dry and experimenting with irrigation efficiency techniques for the crops that feed the country.

Thirsty crops, a burgeoning population and below-average precipitation have also led to seriously overdrawn groundwater sources that took a very long time to fill up.