An Inconvenient Truth turns 20 next month. In the 2006 documentary, former vice president Al Gore argued that human-driven climate change was an urgent, civilization-threatening crisis. The film became a cultural phenomenon, winning two Academy Awards and making climate change one of the defining political issues of our time.
I am sure that there will be many retrospectives seeking to relitigate the scientific claims in the film. But the far more important anniversary story is not about the accuracy of any of Gore’s individual claims but rather about what the film helped to unleash in the scientific community: bringing partisan politics into the institutions of science.
Gore did not simply make a film about climate change: He implored the scientific community to join him in overt climate advocacy. The fuel that Gore added to the fire of pathological politicization of the climate science community is the most important legacy of An Inconvenient Truth.
Almost three years after the film’s release, Gore took the stage at the 2009 annual meeting of the American Association for the Advancement of Science (AAAS)—the country’s largest and most prominent scientific organization—and delivered something much closer to a revival sermon than a scientific lecture.
Gore told the assembled scientists that they could no longer “in good conscience accept this division between the work you do and the civilization in which you live.” His directive was clear:
