In 1979, the same year the disco rage collapsed, the National Academy of Sciences undertook its first major study on climate change. The conclusion on page 2 was "If carbon dioxide continues to increase, the study group finds no reason to believe that these changes will be negigible (or easy to ignore)." With this report, scientists had reached a broad agreement that global warming would eventually happen if humans kept pumping carbon dioxide into the atmosphere.
Science historian, Dr. Naomi Oreskes documents in her 2010 book, Merchants of Doubt, that "scientists had a consensus about the reality of global warming and its human causes...since the mid-1990s" (page 215). She also published a study in ScienceMagazine in December, 2004. She surveyed all the peer-reviewed 928 articles in science journals with the subject 'global climate change' between 1993 to 2003. The result was not a single paper rejected the scientific agreement that humans are causing climate change.
More recent studies, in 2009 & 2010, show up to a 97% agreement among climate scientists that climate change is real and caused by humans.
Clinging to that outdated thought that 'scientists still disagree if humans are causing climate change' makes about the same sense wearing those outdated disco clothes to impress your neighbors, boss, and that person you want to date. Good luck with that!
Just as bad as wearing outdated disco clothes is believing this outdated idea: 'scientists still disagree if humans are causing climate change.'