Our problems are endless. But I think this problem is not created by us. These problems are mostly created by developed countries. They are building everything from sophisticated war equipment to high-rise buildings to prove themselves in the modern world. As a result, they are polluting our environment. The harmful effects of which are directly affecting the citizens of underdeveloped countries like us. However, it is not like the people of developed countries are being spared from this. However, if your imaginary ideas were implemented in reality, it would really benefit us a lot and the world would become a much more beautiful place. Because many people in the world are suffering from health problems due to pollution and war. But countries are using harmful chemicals to show their power and their effects continue until the post-war period, which we can still see in Hiroshima and Nagasaki in Japan.
If every person in the world made a conscious effort to reduce pollution, contributing in whatever small way they can, it would go a long way toward healing our planet.
It doesn't matter. Same air is breathed. And if the roles of the past were reversed, then the developed countries that are currently underdeveloped, would be doing it. Human nature doesn't change.