46 percent of Earth is...

46 percent of Earth is still wilderness, researchers report: "Despite population growth, logging and other environmental threats, nearly half the land on Earth remains wilderness -- undeveloped and nearly unpopulated, according to a study released today. The study by 200 international scientists, the most comprehensive analysis ever done on Earth's wild places and population trends, was seen by some experts as a surprising cause for optimism. Biologists also viewed it as a warning, since only 7 percent of the wilderness is protected."