Sierra Nevada snowpack fails to help California’s drought

Even when it doesn’t rain in the rest of California, winter build up of snow in the Sierra Nevada mountain range usually helps replenish dwindling supplies when the spring thaw comes.

Sierra Nevada mountains.

Sierra Nevada mountains. Image by Justin Meissen / CC BY-SA 2.0

But a new report shows that the snowpack over winter 2014/15 was the lowest in 500 years and did little to help with water shortages. Researchers studied the tree-rings in a type of oak in the range to determine the impact of the winter snow and published their findings in Nature Climate Change. Read more: nytimes.com

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