"William Sanford "Bill" Nye

popularly known as Bill Nye the Science Guy, is an American science educator, television presenter, and mechanical engineer. He is best known as the host of the PBS children's science show Bill Nye the Science Guy (1993–1998)."

https://en.wikipedia.org/wiki/Bill_Nye

Bill Nye is a media personality. Where he draws the line between 'presenting the facts' and 'entertaining the crowd' is hard to judge. Global warming disaster porn gets him exposure and helps his career. I would take any of his predictions with a grain of salt unless backed up by some serious research and studies. These claims by Nye and others are usually just intuitive guesses made by the presenter.