Trevor Wilson wrote: ...
...
It's perfectly true the "climate has changed in the past". :)
If you want to point to what the climate looks like after all the fossfil fuel has been burned, you can point to the period 55 mn years ago when the atm CO2 was up to 10 trillon tonnes (pre industrial was around
3 trillion; we're presently passing through 4 trillion).The source of the extra CO2 is a bit of a mystery then. Now, of course, we know where it's coming from.