No joke. Is it 10 years from now, 100 years, or something else?
Anyway, I'm not a climatologist, but from what I understand we will be seeing significant global ramifications in the next 2-3 decades. In other words, it's not just the next generation that's going to suffer, it's going to be a great deal many of us who are alive today.
When you do, you may find that while there's virtually no question human activities are having effect(s) on climate (very likely negative) there's a LOT of uncertainty on what and how much the effect(s) are.