Many will say that expecting the government to help is hopeless. However, that is fatalism, and an improperly functioning government doesn't negate the fact that only government can guide the market to preserve the resources of the future (including our health.)
Meaning what exactly? Anybody is free to create value and realize profit from it. It's not a privilege. Nor does it mean you "should" do anything.
No one “should” do anything, except that you pay for not doing it in the end.
My parents grew up in an environment (semi-rural) where/when it seems to have been normal to leave trash around, though. This was in the 50s. I guess they saw the issues and raised my siblings and me differently.
It makes me happy that more people are thinking about not trashing their environment!