My latest thinking is that all humans understand the following, as true as 2+2=4. No matter what we do every 115 years every human on the planet is different and will not do whatever the humans before him or her instructed to do.

We cannot make the decisions for those living in 115 years. Even if we reduced C02 to as close to zero as humanly possible in 115 years humans might go back to burning it at 10x the rate we were.

Sure, we are affected by the actions of our ancestors. That doesn't mean we can effect the actions of our progeny.

That's why you're at Oktoberfest. Your brain knows all this. They estimate humans went down to a population of thousands a million years ago. If that happens again (and something like that will) what can we do to stop it? Maybe it'll be an asteroid or 100 volcanos going off at the same time or a virus.

All that said, I'm not going to waste if I can avoid it. As you don't. I think that's where it gets really depressing. So little effort. Even if it won't matter. Still...