If a 4,061 acre forest were a house, then Todd Crabtree would be the ideal appraiser. His habitat models take distributors of federal funds on a house tour to see all the unique features not visible from the street. These “prospective buyers” give funding to the land that is most valuable and worthy of protecting. His work has led to the protection of over 4,000 acres of ecologically important land that supports threatened species in Southeast Tennessee.
At one time, the Colorado River Delta comprised over two million acres of thriving wetlands and waterways extending from the southwestern tip of the U.S. to Mexico’s Gulf of California. But in the last half century, the imbalance between the human needs all over the basin and the natural output of the delta has reduced the river to a weak trickle.