Do you really not know what he was showing with the two different weather graphics?
What I do not like about the mosquito, fire, immigration, homelessness etc. stories "blaming" global warming, is that it always seems like a cover for failed policies, programs or management.
Sure, they can blame everything on global warming and (apparently) you will eat it up, but a lot of people (flat-Earthers or otherwise) don't. They see it as incompetence hiding behind a hot-button issue.
The mosquitos are and have been moving north for a number of reasons, climate could well be one, but why is that the only reason they site?