What have we lost because of disasters and human life? What have people saved?

Over the centuries, humanity has developed in all directions and now progress has achieved incredible results. But at the same time, with the development of civilization and progress, nature is experiencing an onslaught on its possessions, and it cannot do without serious disasters. One of such disasters is the explosion of a power unit at the Chernobyl nuclear power plant, as a result, we have lost huge natural territories for hundreds of thousands of years. Although nature there prevailed over people. During the absence of people, the nature of Chernobyl has transformed and flourished, species that have been exterminated before the accident have taken root and bred. In general, many types of living beings have disappeared in the world due to the activities of people. But so far, most of the animal and plant world has been preserved in the world, and people are trying to preserve it by creating protected parks, introducing fines and restricting hunting.