The facts are the facts regardless if those facts take 25 years, 100 years, or 200 years to catch up to us. It's going to happen.
Timeframe matters more than anything in the climate change debate. 50% of the world's current population centers being underwater matters if its going to happen in 25 years, but it doesn't mean shit if its going to happen in 200 years. Our society can handle change quite easily, unless it is abrupt and drastic, then we can still handle it but with a bit more pain. How fast current climate change is in relation to previous geologic events means absolutely nothing, all that matters is are the species on this planet able to adapt to the rate of change that appears to be on the horizon. Based on current projections, the answer to that question is yes, and that's why a lot of people don't really give a shit. 1C over the next 100 years is manageable, 2C over the next 20 years is not.
Many that are labeled as 'skeptics' are not in debate over whether climate change is real, but over how fast its happening and if we should take drastic measures to stop it.