It seems to me that this will have an effect! such global problems need to be solved only by uniting everything together!
It is already noticeable now as everywhere and everyone says that only together we can solve environmental problems. No country alone can do anything.
Because people think only about themselves, perhaps not all, there are those who are willing to help make the world a better place.
A lot depends on mentally of people, but government can do a lot of things to popularise eco friendly solutions