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.
Há uma estimativa que sugere  que nos EUA, dois terços da terra que dantes era floresta  e que depois foi desflorestada, se reflorestou assim que  os lenhadores e os agricultores se retiraram, particularmente na metade leste do país.