Former Vice President Al Gore is still making climate doom predictions, 20 years after his warnings from An Inconvenient Truth proved false — this time invoking the science fiction film The Day After Tomorrow for a rapt Hollywood audience.

In the course of the conversation, Gore mentioned that the idea for An Inconvenient Truth came out of his promotion for the 2004 science fiction movie The Day After Tomorrow (throughout the keynote, Gore mixed its title up with the 1983 nuclear war thriller The Day After). The mansion-dwelling, private–jetting climate crusader later invoked the disaster film, saying that the calamity it depicts is “a very real threat within the next 25 years.”

Read more: Al Gore Warns ‘The Day After Tomorrow’ Ice Age Could Happen in 25 Years, 10 Years After ‘Inconvenient Truth’ Prophecies Failed