You don't just develop existential dread about climate change out of nowhere. First comes awareness, in this case the younger generation grew up being educated

You don't just develop existential dread about climate change out of nowhere. First comes awareness, in this case the younger generation grew up being educated about climate change. Then you get exacerbation/increased attention - in this case social media and traditional media which have fuelled doomsday rhetoric and alarmism in general. Not to say that it isn't a big issue, it's massive; but doesn't help that we're feeding young minds with constant negative stimuli about how we're all going to die and there's nothing we can do about the problem.