The primary purpose of the Fossil Fuel Man Challenge website is to encourage people to take action, move away from their Fossil Fuel Man habits, and to make an initial step towards becoming eco-enlightened.

The site promotes action by enabling the posting of pictures and information showing that the FOSSIL FUEL MAN and the ECO-ENLIGHTENED MAN are alive and well in today's society. However the main goal is to encourage individuals to "Take the Fossil Fuel Man Challenge" by taking up an initiative that eco-enlightens something or someone in their local ecosystem.