Thus in the judgment of the committee, the environmental, economic, and humanitarian risks of climate change indicate a pressing need for substantial actions to limit the magnitude of climate change and to prepare for adapting to its impacts. Undertaking such actions will require making choices in the face of incomplete and imperfect information about the future.
The National Academies of Sciences, Engineering, and Medicine
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"2 Causes and Consequences of Climate Change."
America's Climate Choices.
Washington, DC: The National Academies Press, 2011.
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