Such a sad case
Climate's Point of No Return is what the headline reads on the Science Magazine article. This is their polite way of saying "we're fucked even if we stop polluting today." How fucked? I don't know. But if you're used to seeing beautiful snowcapped mountains, it might be prudent to find a friend with a large-format camera and have them take a fistful of pictures of the mountains you're particularly fond of before they lose their pretty white frosting.
And you'd shouldn't rush out and buy waterfront property, either, unless you're really fond of watching your investments wash away.
The cheerful "expect a 4" rise in ocean levels by 2100 even if we stop polluting today" comment reminds me of the 20 year prediction for Mt. Kilimanjaro. And since one superpower is on record as saying that there's no such thing as global warming, the whole idea of "stop polluting today" is, um, not realistic.
And, no, it's not going to help if you hop in your SUV and crank up the air conditioning.
(link via Hellblazer, title from UB40)