The European Commission launched a mobile application that allows consumers to track their carbon footprint. The "mobGAS" mobile phone application, which is available in 21 European languages, was developed at the European Commission's Joint Research Centre. It allows users to see the implications of the choices they make every day, in terms of the three major greenhouse gases -- carbon dioxide, methane and nitrous oxide. Information about everyday activities -- cooking, transport, lighting, electronic appliances etc. - is put into the application,...