Quote Originally Posted by 8182KSKUSH
If you really look at the graph, it looks like there are multiple periods of co2 spiking drasticly.
Each increment on the graph is 10,000 years. The spikes that occur are usually in that range --- occurring over 10,000 years. You don't see anywhare on the graph a spike of 100ppm in the blink of an eye like you do at the very very end. And you don't see anywhere on the graph a spike as high as the one at the very very end.

That's where my concern comes from, an instantaneous spike to the highest levels ever.