Our planet Earth is just a tiny part of the universe, and at the moment it is the only place where humans can live.
Humans have interacted with and influenced their environment since the beginning of their species.
All these processes out of context do not seem particularly scary. However, we must remember that the Earth is a very delicate and fragile system, in which all the links are interconnected.
Since the beginning of the twentieth century, the first programs aimed primarily at protecting (saving) the environment began to appear