 In October 2003 the McCain-Lieberman Climate Stewardship Act failed a vote in the Senate by 55 votes to 43, but would have introduced a cap and trade system of greenhouse gases at the 2000 emissions level.In 2005 it was reintroduced under the altered moniker of the Climate Change Stewardship and Innovation Act, but again failed to gather enough support; Republicans opposed the Bill 49-6, while Democrats supported it 37-10.If passed, the acts would have capped 2010 CO2 emissions at the 2000 level.