Abstract: A mobile application for use in facilitating environmental credits has been developed for individual as well as corporate and municipality use. The downloadable application can be used to track a user's carbon footprint and possible reductions in carbon use through purchasing green products and other methods of carbon savings. The closed loop feature allows the user to return the carbon credits to the manufacturer of the green product. Although carbon credits are used in the examples, the invention can be used for any type of environmental credit or reduction in monitored substance. Also, the invention is flexible in its application and can be used to track carbon savings for event travel. The use of the mobile application is unlimited in geographic reach.