There is considerable confusion among the Democratic Senators as to whether or not the U.S. has signed Kyoto. Senator Lautenberg stated the U.S. has not signed Kyoto. Chairman Boxer -the Chairman of the US Senate Environment and Public Works Committee, mind you – thought that President Clinton had signed it, but President Bush had rescinded the signature. The U.S. signature remains on Kyoto. The U.S. Senate could ratify Kyoto if it wanted to.