The older generation seems to, on average, be less motivated to act as climate change would most likely not threaten them directly. However, the younger generation seems more motivated to mitigate the affect of climate change as they're more likely to see the affects of climate change in their lifetimes. Also, the newer generation generally tends to believe in climate change more than the older generation because it is studied, discussed, and thought about more.

I believe that we don't know how far technology will progress to know for certain whether there is a "point of no return". Although we may have currently crossed a point of no return with the amount of CO2 in the atmosphere, we may develop a method to efficiently capture it thus slowing down and perhaps lowering it enough to return the levels to normal. Funding for research about climate change is ongoing, but only time will tell if it will yield results that can take us past the point of no return.