Shasta Lake is the largest reservoir in California, and government officials are completing plans to make it even larger by raising the height of the dam. But the expansion has sparked intense debates among local residents, Central Valley farmers, environmentalists, tribal groups and developers.
The world's biggest trees are experiencing a growth spurt, and scientists think climate change may be playing a part in it.
Valero wants to start using trains to bring crude oil to its Bay Area refinery. But the project is raising concerns about congestion, safety and air pollution in the East Bay city of Benicia – and the connection it may have to Canada’s controversial tar sands.
A new report by Stanford University scientists finds that the earth is warming much faster than thought. What might be even more surprising is the speed of the change.
Californians continue to favor strong, immediate action on climate, but not at any cost. And most of us still drive to work solo.
When it comes to protecting people and property from rising sea levels and catastrophic storms, it turns out that Mother Nature can often provide a better solution than an expensive engineering project.
The record-breaking Australian summer of 2012–13 could not have happened without the human disturbances—greenhouse gases, aerosols and ozone—that underlie global warming. Australia’s experience may provide a clue about the future for dry continental areas like our own American West.
President Obama is introducing a plan to cut greenhouse gas emissions from power plants and support more renewable energy development.
After more than 150 years on the California landscape, eucalyptus trees have iconic status for some Californians. But the stately trees may not only disrupt the native ecology, but seem to have evolved special adaptations that allow them to thrive after intense fires.
As conservation scientists struggle to stem the catastrophic loss of biodiversity, some synthetic biologists are working to bring extinct species back to life. Some believe it's the right thing to do to atone for driving species extinct. But many conservation biologists say it's far more important to save those still among us.
A new study suggests climate change could drive nearly 100 native species either to extinction, or to very low numbers, by the end of the century.
A United Nations expert recalls the exact moment she first witnessed the impact of climate change–and sees a concerted global effort as the only way to turn down the heat. »
The Lyell and Maclure glaciers in Yosemite – like glaciers and ice sheets worldwide – are in rapid state of retreat. The Lyell and Maclure were presumed to be “true” glaciers – that is, thick slabs of ice dragged downhill under their own weight, scouring the land as they move – but scientists are discovering that the Maclure is deteriorating as it moves, and the Lyell is no longer moving at all.
Earlier this year, geologists in Yosemite Park came to the sad conclusion that one of California's iconic glaciers, the Lyell, had ground to a halt, having lost too much mass to sustain its downward movement. Knowing that California's approximately 130 glaciers will not be around forever, Tim Palmer spent a summer on a personal quest to climb and photograph as many of these frozen giants as he could manage.
Archiving artifacts from the sea, a natural history museum preserves precious data for scientists. »
More than 500 scientists from around world signed a joint statement drafted by California scientists in the hope of sending a unified message about the changing climate.