scientifically proven ecological collapse

This is a pretty specific thing, but the general "we're all doomed" vibe is definitely not unique to today. Boomers and older had the threat of nuclear annihilation looming over them, and before that... well, disease and famine and death and destruction due to war have historically been the norm.

Imagine how you'd feel living in the Americas in the 16th or 17th centuries and either watching the destruction wrought by European settlers firsthand or, maybe worse, watching your peers die en masse of the diseases introduced by those settlers. Imagine living in Eurasia in the 13th century and watching the Mongol army sweep through.

None of this is to say that today's challenges aren't real and serious. Just that we're not the first to face such challenges.

The greatest and silent generations saw some shit

Considering science has only gotten robust enough to prove anything like that far more recently than any good examples of ecological collapse, I'd say this parameter is a little arbitrary.

The best example I can think of regarding ecological collapse is during and after the fall of the Western Roman Empire. Their climate decreased in temperature, which reduces crop yields, which weakened the empire and encouraged migration from northern Europe, which brought their collapse (plus like 12 other things lol).

In 535AD, during Justinian's reign in the east, the first black plague happened following a supermassive volcano that left the sky covered in ash blocking the sun. This was a massively ecologically damaging period of history and it caused the death of countless plant and animal life, along with the deaths of half the population of the Mediterranean.

It's not like people of this age were taking soil samples and references trends or whatever, but they certainly understood how things were going poorly.

The ozone layer depletion was a very serious threat. The solutions were a lot easier though.

Find the good in eat. We can finally get rid of society's parasites. Landlords

This is an interesting perspective, because in previous generations most of the long term fears were settled by simply doing nothing. They held their breath and it worked out.

The key difference is that the current generations are acutely aware that if we do nothing and just "stay calm and carry on", we're totally fucked. Inaction isn't going to save us this time. We can't put our heads in the sand and just sing ourselves to sleep then expect a good outcome when we resurface.

I think that's a key differentiator. Previous generations were fearful of something happening. Current generations are fearful of nothing happening, because if nothing happens then the world will become uninhabitable by humans.

Yet, the majority of the decision-makers in our society are silent generation/boomers that drove to success by inaction and they're largely doing nothing. We see this and understandably know how fucked we are.

Excellent point.

This is what gave me some peace: it could all end horribly for me at any minute. Anything could happen. I could get hit by a bus. I could die painfully from some fucked up disease. A fat asteroid could hit the earth. It's all out of my control. Or things could turn out for the better, by some way I never foresaw. The best thing for us to do is to strive to be good people and care for what is in front of us.

I still find it a bit of a mindfuck that humanity is being such a deleterious effect on this beautiful world.

... and I do think that growing up under the threat of nuclear holocaust must have been similarly terrifying.