what problems the other countries are facing while they are adapting the solutions for environmental developme

Answer 1

Most of our technologies are based on an assumption of open resources like air, water, and land. Interesting thing, space exploration, all the engineers having to reexamine the way we do thing from simple tools to processes because we cannot simply assume gravity or air or other such resources. It can be, but surprisingly is not always, an expensive proposition to have to account for what we do with what all comes from what we do. You burn wood or coal in the open air, we normally don't worry about the smoke and ash. To do so is an extra, and not always easy, problem. Technology can be cheap, and it can be costly. After it is developed and consistently applied then it seems normal to do things this way. But with technology, the way of doing things must change. Developing countries are underdeveloped because they retain much of their older ways of doing things. It is no longer good enough to simply dump a community's sewage in the same river they took their water from and it is no longer good to simply take water from the river or lake directly to the glass or cleaning tub. All of that involves an understanding and appreciation of things they had not needed to concern themselves with before. It isn't easy. It isn't cheap. And when you have little of value to the technology and standards of today, that means there is little you can afford to do. Lesser developed countries need to be far more careful in dealing with the largesse they beg or borrow from the developed nations. I know it is tempting for the big bosses to spend it on the perks and trappings of their places of prestige, but that is squandering the opportunity. That leaves people in the squalor of filth and disease that they should not be kept in.