McCain-Lieberman Climate Stewardship Act

The Climate Stewardship Acts are a series of three acts introduced to the United States Senate by Senator John McCain (R-AZ) and Senator Joseph Lieberman (ID-CT), with a number of other co-sponsors. Their aim was to introduce a mandatory cap and trade system for greenhouse gases, as a response to the threat of anthropogenic climate change. All three acts failed to gain enough votes to pass through the senate.

The first Act (S. 139, H.R. 4067) was in the U.S. Senate by 55 votes to 43.

If passed, it would have capped 2010 CO₂ emissions at the 2000 level. Residential and agricultural areas, as well as other areas deemed "not feasible", would be exempt. As such, approximately 85% of the United States' emissions would have been covered for the year 2000. The bill would have also established a scholarship at the National Academy of Sciences for those studying climatology.

Under a slightly modified title, but with similar provisions, the Act (S. 1151) was reintroduced to a new Congress. The Act now called for the federal government to play a lead role in researching and commercialising new energy technologies, and particularly nuclear plant designs. This bill also would provide for the trading of emission allowances and reductions as Climate Change Credits.

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