Barter / mobile phone

Barter is an integrated design from system to product because eco-friendly design is not only the object itself but also needs to be supported by a good system such as the integration of iPod & iTune.Barter encourages people to lower carbon emissions by direct incentives . Barter system counts carbon footprints of the users by GPS technology and gives credits to the users.Barter credits can exchange for public transporation & discount.It utilizes photosynthetic algal microbial fuel cells which is self-sustainable.The design of Barter associates the photosynthesis & test tube with the chemical activation.The second life of the battery is valuable and nutrient to the planet.