Calculator puts people in know on emissions

An online carbon emission calculator has been developed to help green commuters track their carbon dioxide (CO2) emissions when traveling by car, bus or subway.

The calculator is part of the Green Commuting, Carbon Footprint campaign initiated by the Beijing Organizing Committee for the Games of the XXIX Olympiad, the China Association for NGO Cooperation and the US-based Environmental Defense Fund (EDF).

After punching their travel routes into the calculator, commuters receive readouts detailing the amounts of CO2 and other pollutants their trips would generate.