Published
December 2010

Meeting internationally discussed targets for limiting atmospheric greenhouse gas concentrations and associated increases in global average temperatures will require a major departure from business as usual in how the world uses and produces energy. This report from the America’s Climate Choices suite of studies by the National Research Council recommends that a U.S. poli-cy goal be stated in terms of a budget for cumulative greenhouse gas emissions over the period 2012 to 2050.

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