Except 50 million years ago we had +10 degrees Celsius increase in temperature and life on the planet was pretty good. We see mass extinctions during ice ages,

Except 50 million years ago we had +10 degrees Celsius increase in temperature and life on the planet was pretty good. We see mass extinctions during ice ages, not during hot spells. This is left out of nearly every climate debate, which typically goes back in the last few hundred years rather than millions. Example graph: http://jeremyshiers.com/blog/wp-content/uploads/2014/07/globalTempAndCo2_last600MillionYears.png http://jeremyshiers.com/blog/wp-content/uploads/2014/07/glob...