The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Apes Apps:
Calculate your residential CO2 emission and see the effects of changing your daily behavior. Touch the icons to input data, touch the traffic lights to see a summary of that item. Your emission is compared with the average emission in your region using reliable data.Sources:International Energy Agency (IEA)Organisation for Economic Co-operation and Development (OECD)International Road Federation (IRF)Central Intelligence Agency (CIA)BPfeatures:Calculates your RESIDENTIAL CO2 EMISSIONDisplays only values you can influence with your daily behaviorCompares your emission with other people (choose one of 144 regions)It contains data of 144 regions to compare your emission per item and your total emission with others.More info: www.apesapps.com