The problem is that previous worst case scenario estimates were based on 3. 6 degrees Fahrenheit of warming, which was more than we expected to actually see, and meaningful cuts in carbon emissions could probably keep a rise like that from happening.
Basically all the worst possible scenarios for climate warming and associated problems it brings are coming true, and we have, at most, a decade to get serious about dealing with the amount of carbon in the atmosphere.
All it will take is a complete restructuring of the economies of the industrialized and industrializing world to halt the warming, while also figuring out the as-of-yet non-existent technology needed to scrub carbon from the atmosphere.
Read more here: Surfer Mag