By the twenty-first century, the relationship between human and nature has become one of the most vital problems. The reason is simple - a global ecological crisis which endanger not only our welfare and peace but even our survival. Among global problems, overpopulation has a central role, since more people have a larger ecological footprint, consume more, pollute more, occupy more space from natural ecosystems and emit more carbon dioxide through their activities. An interesting fact that increasing population leads to the risk of global epidemics (COVID-19).
