From a now dead comment, but still worth addressing since I've been seeing this as a dismissal for climate change a whole lot more lately:
> Even Bill Gates has admitted that it's not that concerning.
https://www.cbc.ca/news/science/bill-gates-memo-climate-chan...
https://thehill.com/opinion/energy-environment/5585562-bill-...
Tl;dr: Gates still thinks climate warming is a major threat, just not to the extent of using it as a doomsday threat of "guaranteed destruction for all of humanity."
I find it fascinating that climate change deniers will often say absolutely anything to discredit Bill Gates, but the second he says something that could even be misconstrued as support for their side, all of the sudden he's a trustworthy authority for their beliefs.