How did the development of the land by man take place? What impact did it have on the nature of the earth?

Many scientists believe that man originally lived in Africa, and then migrated to Europe and Asia. Then North America and South America, and only then, through Southeast Asia, did the man get to Australia.
When man settled around the globe, he began to engage in animal husbandry and agriculture. Which led to the manifestation of townships, villages and cities. Man also began to build farms, factories, factories and thereby changed the natural complex of the Earth. There was a massive deforestation, pollution of water bodies, the disappearance of various species of animals. This led to a profound change in nature.