There's no evidence that the rise in temperature creates a 'rubberband' effect per se. Some believe that the (modest) desalinization of the Arctic Ocean, as it spreads into the North Atlantic, can stall the Gulf Stream and THAT would cause an iceage... but there is no historical evidence that this is what causes iceages... or even that the mini-iceages that have occurred in (relatively) recent times, over the last 1300 years. No one had measured these currents before the last century.

We just don't know. Nor do we know if all this worry will be offset by a huge series of volcanoes throwing ash into the air... and creating a 'shadecloud' that cools the planet... (maybe the cause of the Dark Ages?) and we'll be scrambing to increase the greenhouse gas effect.

It's the world... and the solar system. It's been around for a long long time and we haven't... and don't really know how it all works.

Where's that hole in the ozone? Oh yeah... went away on its own. Turned out to be a cyclic phenomenon... we just jumped to conclusions... because it was the FIRST time we happened to be able to measure it.