Lost Wilderness

An article in Current Biology finds that 30.1 million square kilometers of wilderness remain (23.2 percent of total land area) which represents a 9.6 percent loss since the early 1990s. Unsustainable practices for agriculture are largely responsible for the losses.

Update (September 13):  Dahr Jamail points out additional details from the wilderness study.

[A]t least 27 entire "ecoregions" -- environmentally and ecologically distinct geographic units at the global scale -- have lost all of their "remaining globally significant wilderness areas" since the early 1990s. The Amazon basin, in particular, has been reduced from an area of 1.8 million km to 1.3 million km (a loss of over 30 percent) in the same time frame.