Carbon dioxide (CO<inf>2</inf>) is an abundant and stable form of carbon that is the product of respiration and burning of fossil fuels. As a result of these activities, the atmosphere concentration of CO2, a greenhouse gas, has been rising over the last century and contributing to global warming. Industries and Automobile manufacture contribute largely to the emission of CO<inf>2</inf> into the atmosphere, due to this there is a strong interest in developing methods for sequestering CO2 either by capturing it or chemically converting it to valuable chemicals. In this project CO<inf>2</inf> will be chemically converted into a non-polluting gas through catalytic reduction of the exhaust emission from the passenger vehicle. In this project, coconut shell activated carbon will be used as a catalytic reduction agent for the reduction of the exhaust emission. We will be designing and fabricating the chamber which will contain the coconut shell activated carbon and will be testing of the catalytic reduction chamber on an gasoline passenger vehicle using a gas analyzer. © 2015 Elsevier B.V., All rights reserved.