Air quality warning as Oregon wildfire grows

A wildfire raging out of control in Oregon grew in size Tuesday as residents faced evacuation orders and worsening air quality as multiple blazes scorch the US West.

Planet sees 10 straight months of record-breaking heat

Californians have had weekend after weekend of cool, stormy weather and the Sierra Nevada has been blessed with a healthy snowpack. But the reality is that even the last few months have been more than 2 degrees hotter than ...

Major California river adding key ingredient: water

A decade ago, environmentalists and the federal government agreed to revive a 150-mile stretch of California's second-longest river, an ambitious effort aimed at allowing salmon again to swim up to the Sierra Nevada foothills ...

Gene flow may help plants adapt to climate change

The traffic of genes among populations may help living things better adapt to climate change, especially when genes flow among groups most affected by warming, according to a UC Davis study of the Sierra Nevada cutleaved ...

End of Winter: How 2012 snow stacks up

The mild winter of 2012 has many people asking, "Where's the snow?" These two snow cover maps show the difference between snow extent on March 3, 2011, and March 5, 2012. The maps were compiled from data collected by the ...

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