Does lung cancer cause smoking?

A common argument used in popularising the notion that CO2 drives climate change has been to argue that the evidence from the past, going back hundreds of thousands of years, shows that when CO2 rises the temperature also rises.

This claim features very prominently in Al Gore’s film “An Inconvenient Truth” and this claim continues to be made by climate alarmists.

What does the evidence say.

Here is Professor Bob carter pithily summing up the evidence.