I think we've fucked it. Without some drastic measures being taken we are on track for a minimum of a 2-2.5C rise and that is itself bad but will likely see certain feedback loops (defrosting permafrost, melting deep sea methane deposits, etc) ramp up hard to the point climate change will spiral out of control.
The remnants of human civilisation will be any billionaires with a sufficiently advanced escape plan in place, looking back on a boiling world in their rear view mirrors as they head off to eke out a pitiful existence on a barren rock somewhere out there.