There's a relevant xkcd about that: https://www.explainxkcd.com/wiki/index.php/1732:_Earth_Temperature_Timeline https://www.explainxkcd.com/wiki/index.php/1732:

There's a relevant xkcd about that: https://www.explainxkcd.com/wiki/index.php/1732:_Earth_Temperature_Timeline https://www.explainxkcd.com/wiki/index.php/1732:_Earth_Tempe...