I've never been a climate change denier but I had secretly hoped it would occur slow enough that our economy could possibly adjust for it, over time. Judging by the weather chaos we've already started to see over the past few years it seems like an impossible dream now.
Our economy is predicated on a certain amount of climatic stability over time. a sort of "bounded expected risk". The more investment you have to make into risk mitigation the less you have to invest in productive pursuits. We will be stuck treading water, if we're even lucky, instead of swimming forward.
With government-driven carbon reduction requirements feeding into a trading market it might get to the point that there's enough money to warrant huge investments in sequestration. But I'm not optimistic that capitalism-driven countries will want to impose a high enough cost to spur that kind of investment. At least, they haven't up until this point.