At the heart of industry’s claim that the world’s economies can expand without limit is the idea of “green growth.” Like the fabled economist’s can opener, the green-growth assumption allows us to believe that the impossible can be made possible. In this case, that means generating greater aggregate wealth year by year while emitting fewer tons of greenhouse gases, extracting fewer tons of resources, and causing less ecosystem destruction, biodiversity loss, and other damage to the Earth and our fellow humans.
I found the best way not to get to hopeless about these things and be able to envision a future without the unsustainable extravagances is to try, at least for a small while to go without. It makes a better future seem more concrete and possible.
For example look into preserving your food without plastic and try it yourself a couple times, make your own jam, pickles and ferments at least once. Try out eating only what’s in season and relatively local if you have the means to do so. A lot of these things are far less intimidating then they seem at first glance. I singles out home preservation because it actually has a pretty low barrier to entry.
Then you realize that if you could do it as an individual, how easy would it be if it was the norm and others helped out?