Former Shortgrass Prairie Now Covered in Fields of Wheat and Corn
Each circle and square is an individual corn or wheat field in Kansas on what used to be shortgrass prairie.
This image shows that agriculture also has a major environmental impact. Source: Ethan Grossman & Jennifer McGuire, "Groundwater: The Sea Beneath Our Feet," http://oceanworld.tamu.edu (accessed Mar. 28, 2011)
