Hacker News new | past | comments | ask | show | jobs | submit login

Except we have excellent geological records on the matter so we know what weather was like mostly across periods. This isn’t really something we have been wrong on for a while. Ofcourse we can always be proven otherwise.. This is also backed by mass extinction events being relatively rare.



Geology is so exact it can tell you whether Scotland was snow-free four times in six years in the 1500s?




Join us for AI Startup School this June 16-17 in San Francisco!

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: