There is research that hints that a very quick onset might be possible. It's even be suggested that it can happen in months. [1] (I tried to find the correspond

There is research that hints that a very quick onset might be possible. It's even be suggested that it can happen in months. [1] (I tried to find the corresponding paper but could only dig up a conference talk abstract.) The studies I found all used lake sediments in Irish lakes, so it's somewhat local and not conclusive yet imho. Still, it seems to be a surprisingly fast change in the data. (I was surprised; I didn't know.) Do you have a source for your point? It looks like a more extensive literature review is needed to answer this question since the answer is not on the surface. Or my google-fu is just weak today. On the other hand I also found research stating that the next glacial period might be a few 10,000 years off, so there's that. [1] https://www.newscientist.com/article/mg20427344-800-mini-ice-age-took-hold-of-europe-in-months/ https://www.newscientist.com/article/mg20427344-800-mini-ice...