A personal CO2 calculator called Commute Greener! hit the app store day. Volvo Group, which developed the online site and smartphone app (downloadable for $3.99) had initially tested a prototype internally and showed that employees ...READ»
Kerstin Hanson developed a "CO2 pedometer" application for cell phones, which measures commuters' carbon emissions. Inspired by the data, Hanson's test group altered its behavior and reduced its carbon footprint by 30%.READ»