I think you are letting propaganda freak you out. Climate change isn't going to kill us all tomorrow. Even if it becomes some how majority disastrous it is unlikely to wipe out all humans. We need to think about the future and get our heads out of the sand.

Just to be clear, you definitely shouldn't be worrying about climate change or any other overly hyped up issue. Your life is short and all you can do is be the best person you can. If you care about the environment go do so.e good for the world. Don't spend time worrying.

Climate change is indeed the perfect example, because if we bothered to do anything about it on a societal scale instead of saying "oh well, use paper straws I guess" we'd have had a chance at stopping it and it wouldn't be so apocalyptic.

But instead, we've consistently done very little because it's always seemed too far away to matter, but by the time we start to feel the effects it's basically too late. Realistically, I don't think it's about anxiety necessarily, I think people just don't want to change their way of life. It seems like everything might work out, and little changes like carbon taxes and paper straws might mean we can keep going normally and feeding the consumerism machine like normal while driving everywhere.

As an aside, the heat death of the universe is utterly irrelevant, we'll be dead long before then. And if not, then that will be such a glorious existence for humanity that I'd be happy to die with the universe itself. I just would rather not die stuck on our own rock, choking on our own emissions that we refused to do anything about.