The underlying dataset is fascinating and supports the UV-B damage hypothesis while also falsifying the mega-volcano hypothesis. It took a great deal of Wikiped

The underlying dataset is fascinating and supports the UV-B damage hypothesis while also falsifying the mega-volcano hypothesis. It took a great deal of Wikipedia research for me to get a feel for the paleo geography and paleo climate of East Greenland 359 Mya. The “warming causes ozone collapse” meme seems aimed at gaining media attention but that tactic seems to be the norm now in scientific papers. Sometimes the curation role of a journal is important and peer review can identify errors. In this case it seems like access to the right geological formations by competent scientists is key and I read nothing in the paper made me question the science. I don’t think the lack of journal prestige diminishes the significance of this specific paper; it probably reflects the modern relevance of this extinction event.