He’s trying to convince people that rising temperatures will result in less rain. It is water, not temperature, which affects blueberries.
In the real world, higher temperatures result in more ocean evaporation, and more rain.
Well, you know that. And I know that. But you can't expect a Climate Scientist to know stuff like that.
He is seeking a grant. A perpetual parasite. If this supposed calamity can be linked to global warming (yes, let’s stick to the original name — it at least had a basis in science) he can get monies. Note the weasel words: may, can, etc. Not a definitive anywhere.
The all time fattest wild blueberries I ever picked came off a bush high in the mountains that had its roots sunk into a boggy area.