Since 2009, an area the size of Kansas has been converted to crops.
Explore Nature in the Great Plains
/sites/default/files/field/image/Prai
Pawnee Tribe, History, Facts & Culture - Lesson
The Great Plains, Places
Great Plains - Wikipedia
Dust Is a Growing Problem. What Role Does Farmland Play?
Great Plains Gallivanting
Prairie - Wikipedia
Southern High Plains Initiative
Millions of grassland acres lost in Great Plains, new research