So you want to focus on some niche stuff? Leave out the stuff that would not change and currently causes most of the issues?

I gave examples, not the entire list, lol.

Why should this type of fashion, for example, even change in communism? People want to look different than others, better, prestige, blablabla many reasons that would not change.

Fast fashion isn't fashion, it's incredibly cheaply made garments made with environmentally dangerous methods for the cheapest possible clothing. When you have a society driven around profit, this begins to take hold, when you have a society driven around fulfilling needs, there isn't an endless drive for more new clothes.

I ask again, how would communism make us sustainable? I do not see it. Some niche stuff is replaced by something else in communism, not worth mentioning. A new phone every year is bad, but not the big problem. People drive 13'500 miles per year on average in the USA, burning 10'000 barrels daily or 1 billion m³ each year, 3 m³ per person each year. Add to that all the fuel for heating homes and making electricity. That is our big problem.

Look at where the CO2 comes from. Heating, electricity, transport and agriculture alone are more than 50 %. Compare that to aviation and shipping, next to nothing. Even an of industry is nothing compared to that. How much are these 4 things supposed to be reduced with communism? And why?

I already said public transit and more efficient, ubanized housing. This is silly.