Comment Original paper is way more nuanced. (Score 1) 1
BNE Intellinews article was taken from this press release:
https://www.icm.csic.es/en/new...
which, itself, doesn't represent the research paper accurately:
https://www.pnas.org/doi/10.10...
The conclusion of the research paper is: hey, we can track these sorts of changes in the southern hemisphere and there are several possible explanations and (as with all successful research papers) more research is necessary.