Hm.

- Grok (X‘s AI) is first author of this paper.

- It is published in a journal which seems to be dedicated to questioning climate change https://scienceofclimatechange.org/articles/articles/

- Whose editor in chief has himself published questionable studies on climate change https://andthentheresphysics.wordpress.com/2017/10/03/a-hard...

This isn't that surprising. You can ask most AI models to come up with a competing theory on just about anything.