Overview: Impacts on Physical Systems
Warming temperatures and changing precipitation patterns have altered California’s “physical systems” — the ocean, lakes, rivers and snowpack – upon which the state depends.
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Overview: Changes in Climate
The evidence that the climate system is warming is unequivocal. In California, consistent with global observations, each of the last three decades has been successively warmer than any preceding decade.
Overview: Climate Change Drivers
Greenhouse gases are the major human-influenced drivers of climate change. These gases warm the Earth’s surface by trapping heat in the atmosphere.