According to computer models, anyway:
Even if humans stop producing excess carbon dioxide in 2100, the lingering effects of global warming could span the next millennia. The results? By the year 3000, global warming would be more than a hot topic – the West Antarctic ice sheet could collapse, and global sea levels would rise by about 13 feet (4 meters), according to a new study.
Using a computer model, researchers looked at two scenarios – an end to humans’ industrial carbon dioxide emissions by 2010 and by 2100 – stretched out to the year 3000.
Even if humans were to stop emitting excess carbon dioxide – or if they figured out a way to completely capture it – the effects of global warming would continue to accumulate. That’s because previously emitted carbon dioxide lingers in the atmosphere and the oceans, unlike land, warm only gradually, according to one of the study researchers, Shawn Marshall, an associate professor of geography at the University of Calgary.
The carbon dioxide legacy
The rest here. No mention of the insanity of trying to make a prediction for 1000 years from now, however.