[deaddrop]

>I wonder if OP was referring to any of the more immediately concerning positive feedback loops

Yeah, that's why I prefaced it with it being a dumb question. :)

If the feed backs are accelerating global warming, it wouldn't be too distant a notion from the premise of runaway greenhouse gases.

I'll have to brush-up on my nomenclature to not ask such bone-headed questions in the future. :(