Ars has an excellent article about the paper: https://arstechnica.com/science/2021/02/study-blames-earths-magnetic-field-flip-for-climate-change-extinctions/ ht

Ars has an excellent article about the paper: https://arstechnica.com/science/2021/02/study-blames-earths-magnetic-field-flip-for-climate-change-extinctions/ https://arstechnica.com/science/2021/02/study-blames-earths-...