Wiki has an article on the subject, created by over enthusiastic folk. I tried to kill the witch on the grounds that it had no good definition; alas that didn’t fly. My best effort at a defn that fitted reality was this but it didn’t last. The wiki article will die a long slow painful death, but the term lives on elsewhere.
One of those places being Why we need a zero carbon world by zerocarboncaravan.net. All very nice people, no doubt, but over enthusiasts all. Why do we need a ZCW? Easy: We need a zero carbon world to drastically improve our chances of avoiding a runaway greenhouse effect that is irreversible. Um. But what *is* a RGE? Wiki thinks it’s the same thing as RCC. I’m dubious. I think it might be the thing where our oceans boil away, in which case we can forget all about it as its not going to happen. ZCW seem to use RGE and RCC just about interchangably too, but I think its fairly clear they aren’t doing a lot of thinking. Continuing, climate science indicates that runaway climate change is likely unless extremely rapid cuts in carbon emissions take place within the next few years. Well, since I don’t know what RCC is, I suppose thats a little bit hard to argue with. But unless they mean Hansen, who is well out on a limb, its hard to see exactly what science they are referring to. And no article about RCC would be complete without fatuous nonsense like In 2001, it was projected that the sea ice on the Arctic Ocean would disappear in around 140 years. Now it is clear that it will be gone in a decade or so. Even the wild-eyed wackos don’t say its clear it *will* be gone in a decade (unless they are hiding a very long tail nder “or so”).
OK, enough ranting. can anyone point me at a credible defn of RCC or RGE?
[Update: thanks to Eli for the idea, and ABM for the H+S ref. I've now decided I know what RaGE is, and have dumped it into wiki: http://en.wikipedia.org/w/index.php?title=Runaway_greenhouse_effect&oldid=271212711 for the version I left, which might survive, and [[Runaway_greenhouse_effect]] for the current version, which could well be a disaster by the time you read this. Improvements (especially more refs) very welcome. Less impressed by comments attempting to define RCC -W]