I think it might be more accurate to say that there was a consensus that the evidence strongly suggested it, but some didn't feel that the proof was yet substantiative and wanted to see further studies before committing.

However just as the creationists have spun a fairy tail about how there are "serious scientists who promote creation science", even though in fact there are virtually no serious scientists who entertain creation science, those who have a vested interest in not seeing emissions regulated have spun a fairy tale that there is great disagreement in the scientific community regarding global warming when in fact there is not.

Of course we now know that we also have an administration that had actually been warning and pressuring government scientists not to mention global warming.