California's extraordinary ecological and economic diversity has brought it prosperity, pollution, and overpopulation. These factors, together with the state's national and international ties, make California an essential test case for the impact of global climate change - temperature increases, water shortages, more ultraviolet radiation. Ecological and economic changes that affect California's widely envied individualistic culture will have far-flung repercussions. Global climate change became a worldwide concern during the late 1980s as scientists debated the implications of observed ozone depletion and "greenhouse gas" concentrations, or projected us into the twenty-first century by means of complex computer simulations. Even though many questions remain unanswered, the scientific community is largely convinced that changes - possibly momentous - in the earth's climate are now underway. In this forward-looking volume some highly qualified scientists give their best estimate of what the future holds. Beginning with an overview by Joseph Knox, the authors discuss the greenhouse effect, the latest climate modeling capabilities, and the implications of climate change for California water resources, agriculture, biological ecosystems, human behavior, and energy. The warning inherent in a scenario of unchecked population growth and energy use in California clearly applies to residents of the entire planet. The sobering conclusions reached by these scientists include specific recommendations for research that will help all of us plan and prepare for potential climate change.

California is synonymous with opportunity, prosperity, and natural beauty, but climate change will certainly influence the state’s future. Changes will affect the economy, natural resources, public health, agriculture, and the livelihoods of its residents. But how big is the risk? How will Californians adapt? What will it cost? This book is the first to ask and attempt to answer these and other questions so central to the long-term health of the state. While California is undeniably unique and diverse, the challenges it faces will be mirrored everywhere. This succinct and authoritative review of the latest evidence suggests feasible changes that can sustain prosperity, mitigate adverse impacts of climate change, and stimulate research and policy dialog across the globe. The authors argue that the sooner society recognizes the reality of climate change risk, the more effectively we can begin adaptation to limit costs to present and future generations. They show that climate risk presents a new opportunity for innovation, supporting aspirations for prosperity in a lower carbon, climate altered future where we can continue economic progress without endangering the environment and ourselves.

Summarizes the science of climate change and impacts on the United States, for the public and policymakers.