Fifty years is a heartbeat for an ecosystem. England was deforested. And so was New England. People were burning wood and making charcoal. Then coal and oil

Fifty years is a heartbeat for an ecosystem. England was deforested. And so was New England. People were burning wood and making charcoal. Then coal and oil took over, and the forests regrew. Edit: my experience in Northeastern Massachusetts is that it takes about fifty years for cultivated land to grow up into fifty foot white pines. In another hundred years the climax forest of oak, ash, maple, and beech would take over.