A company by a Wharton Professor Karl Ulrich, and his students, TerraPass, helps clean your conscience by planting trees and negating the pollution due to your car. And it is finding a huge number of buyers. It's catching up as a fad, just like the Louis Armstrong bands. You go to pay upto $80 to clear your conscience depending on the exact specs of the car.
The company expects to turn profitable very soon.
Innovative thinking - Creating a business where there is none!