I guess Gore forgot to read Ari Fleischer's remarks:
REPORTER: Since the president addressed greenhouse gases, but not specifically global warming, does the president agree with the conclusion that human activity is likely the cause of global warming?
FLEISCHER: That's what the president said in his speech in June.
REPORTER: Exactly. He does agree with that?
FLEISCHER: When the president cites the National Academy of Sciences saying that the National Academy of Science indicates that the increase is due in large part to human activity, I don't know how the president could say it more specifically than that.