"based on computer simulations by researchers at the Massachusetts Institute of Technology (MIT)."

I see nothing that speaks to the accuracy of the computer simulations run or what data set they've used.  
There are very few deniers of climate change (it always has and always will) but there remain many who are skeptical that the rate of climate change is the imminent threat it's being  portrayed as.

Without an accurate climate simulation model how can any predicted disasters and associated timelines be accurate?