Of course you are allowed. And whether you are worthy or not is up to you but just gathering a bunch of questionable data, throwing it in the blender, ignoring all evidence to the contrary and using that to spread FUD is definitely not science.
All he did so far was provide some data points. The "real" scientists should be able to explain them easily.
Btw, since I was just talking about her elsewhere, would you say Greta Thunberg qualifies as a scientist?