The Poppers propose that a significant portion of the region be "deprivatized", and envision an area of native grassland perhaps 10 or 20 million acres (40,000 or 80,000 km²) in size.
The Poppers propose that a significant portion of the region be gradually shifted from farming and ranching use. They envision an area of native grassland, of perhaps 10 or 20 million acres (40,000 or 80,000 km²) in size.