I can't think of a specific paper/s off hand but having been at labs where they do climate modeling and going to every talk I could I've heard estimates of tens of trillions to hundreds. So the ballpark at least passes my sniff test, though I know that this isn't a hard source. It is also difficult to estimate the damages and costs of climate change which is part of why costs vary so widely. (e.g. do you include events like Katrina?)