I understand your point of view. It is a reasonable point of view. We do have solutions. We've had them for *decades*. The problem is *they are not being used*.
Warnings from specialists to start doing something were ignored, downplayed, ridiculed. They still are.
We did that 40 years ago. 30 years ago. 20 years ago. 10 years ago. We're not using them this decade: Like I said, fossil fuel use is uncontrollably increasing, but we still have 6 and a half years until 2030.
What makes you think we're gonna start using them in the future?
Because the situation will be so bad, homo sapiens-sapiens will be *forced* to do something?
Not only that, but the reaction will be the *correct* one?
To a problem that involves the single most complicated system we have ever seen, bar none and by a comically large margin?
On a planetary scale?
From a species that refused to wear a fabric mask to help a pandemic? (a few thousand tons of *plastic* medical waste yearly, by the way. Maybe those refusing to wear a mask were ecologically conscious?)
From a species that has never in its history of existence faced anything even remotely similar?
Successfully?
On the first and *only* attempt?
The ecosystem does not function on a yearly basis. It has huge, huge inertia. Not only that, but some changes are *irreversible*.
If species goes extinct, they're not coming back, and we've driven many, many species extinct already.
If farmland gets destroyed, it's not getting back.
If water becomes toxic, it's not going back.
By the time we *observe* the destruction, by *definition* it will be too late and we are *already* observing destruction. It's just not "in our face". And there is no warning shot. Once it starts, you can't hold it back.
I hope you can understand now why I say these things which seem pessimistic to others.