Roger Coppock wrote:
The ultimate positive feedback for global warming!

So how much additional CO2 would be added to the atmosphere
in a worse case scenario? Assuming there's a large scale
thaw?

Forget about GW for a bit. At what point does the CO2 level began
to affect our health just breathing the air? Already some models have
it reaching over 1000 ppm next century... what if it reaches 2000 ppm?
Would we still be able to breath the air?

Madness.