What measures should people take to make the economy less harmful to the environment?

Probably the best way is to create or improve waste treatment plants, which are most often disposed of incorrectly, causing harm. You need to learn how to recycle waste into harmless, or even useful raw materials. Alas, considerable material resources are needed, most likely it is on the basis of this fact that it is quite difficult to solve the problem. After all, even if concrete measures are taken in our state, in another, nature will still be harmed. The problem is worldwide, it will only be possible to solve it at the global level.