I never had kids of my own, because I didn't want any, but the last 15 years or so I've becoming increasingly grateful that I made that decision. It at least allows me to sit back and contemplate doom without worrying about what my kids' life on this planet is going to be like after I'm gone.
I've always done the reducing, reusing, and recycling, because it's the right thing to do. Cut waaaaay back on dairy and beef purchases, I eat a lot of plant protein and use plant milk now. But it's all a drop in the bucket. Only the governments can actually fix this, and they won't because they are owned. I just sit around hoping it won't get TOO bad before I'm dead.