Lake Placid, credit: Wikimedia
If you accept the thesis reported by Charles C. Mann the great eastern forest which the American settlers turned into farmland was actually secondary growth. The consequence of the depopulation of vast swaths of North America of its indigenous population due to disease which preceded the expansion of Europeans (recall that until 1800 whites hugged the Atlantic coast, leaving the interior to indigenous people by and large). And yet by 1900 that great forest was gone. Now it's back again. A piece in The Wall Street Journal highlights how incredibly robust the recovery has been, America Gone Wild:
...Since the 19th century, forests have grown back to cover 60% of the land within this area. In New England, an astonishing 86.7% of the land that was forested in 1630 had been reforested by 2007, according to the U.S. Forest Service. Not since the collapse of Mayan ...
