There's one estimate which suggests that in the United States, two thirds of the land which was once forested and then cleared has become reforested as loggers and farmers have retreated, particularly from the eastern half of the country.
Jedni sugerują, że w USA 2/3 dawniej zalesionej a potem wykarczowanej ziemi uległa ponownemu zalesieniu, gdy opuścili ją drwale i rolnicy, szczególnie we wschodniej części kraju.