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Personally, the “renewable” energies aren’t making me hopeful. Because they are absolutly not renewable, they can’t be build without pollution because of the materials you need. And even so, climate change is not even the worst of our existential threats, there are many more, but strangely, people are only talking about climate.
Actually, it’s too late, because those in power are accelerating in the wrong direction and we are less and less able to prevent them to do so.
And even so, given the current state of the society, even the “best case scenario” will be enough to make it collapse.