S. 139 is a multi-sector bill proposed by Senators Lieberman and McCain to limit greenhouse gas
emissions from the electricity generation, transportation, industrial, and commercial sectors.
These sectors accounted for 85% of total greenhouse gas emissions in 2000.
The bill would establish an overall emissions cap and allow for trading between and among sectors.
The original version of the bill called for capping emissions at 2000 levels by 2010 and 1990
levels by 2016. When brought to the floor for a vote, an amendment was added, stripping the bill
of the 2016 cap.
Unlike the multi-pollutant bills, the Climate Stewardship Act made it to the senate floor, where
it was defeated, 43-55 on October 30, 2003. Both Senators Lieberman and McCain have pledged to
bring the bill to another vote "as soon as possible."
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