To begin with, it's worth figuring out what fast fashion is and how dangerous it is for the environment
Fast fashion is a fashion that appeared from nowhere. It immediately became some kind of trend and people accept it with confidence, but it's not as cool as you think. Fast fashion harms nature and the environment. You ask how? Firstly, this kind of fast fashion is not worked out and is created from materials that harm nature. But people do not pay attention to this and become victims of fashion. But fast fashion ends sooner or later and people forget about it. There is also a slow fashion, in which certain clothes will be constantly in fashion regardless of the time of year or weather. Such things are made from proven materials that do not harm nature.
In the end, we can say that fast fashion is useless if it does not harm the environment or people send used things for recycling so that they can make some other things or goods out of them.