A new UCS report draws upon the best available science to set a long-term target for reductions in U.S. global warming pollution that will give us a reasonable chance of avoiding dangerous climate change. Our analysis shows that aggressive reductions will be required by all nations, including U.S. reductions of at least 80 percent below 2000 levels by 2050, and a limit on total cumulative U.S. emissions for the period 2000-2050 of no more than 160 to 265 gigatons CO2eq. The report also assesses which of the bills currently under consideration in Congress could meet the proposed target.
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