Citations please?

From a cursory look, any such events look like they were part of mass extinctions. I'm curious what exact data you are looking at so I may better understand your statement.

I'm just annoyed with the lack of reading comprehension. My statement was "we've drastically increased one of the primary greenhouse gas concentrations at a rate unseen in Earth's history". I am aware of no other scientific evidence, or even hypotheses, where greenhouse gas concentrations changed as quickly, and that includes periods of extreme vulcanism, such as when the Siberian Traps were created.

Again, if you have any evidence or citations to the contrary, "put up or shut up".