Almost every day you can read something about climate change in the news papers. Now they talk about the CO2 Act. Switzerland has responded to the warming of the earth’s atmosphere with a CO2 Act. The Act, which entered into force on 1 May 2000, forms the core of Switzerland’s climate policy by which binding targets are set for the reduction of the most important greenhouse gas, CO2. The CO2 tax on fuel plays a key role. It has been levied since 1 January 2008, along with the “climate cent on vehicle fuels”, which is used to finance projects in Switzerland and abroad. By the revision of the CO2 Act, Switzerland introduces compulsory limits for the average CO2 emission of fleets of newly registered cars. Importers and producers of cars are allowed to form pools in order to compensate heavily polluting cars with more environment-friendly ones. The limits for the average CO2 emissions of fleets are strengthened gradually from 2012 (65 per cent compliance) until 2015 when their average CO2 emissions should not exceed 130 g/km (100 per cent compliance). Fleets that do not fulfil their respective emission limit are subjected to fines. The emission limits and the time schedule correspond to the Decision of the European Council on April 6, 2009. As the present average consumption of CO2 in Switzerland is higher than in the European Union, fines in Switzerland need to be higher in order to comply with these aims. Environmental Organisations say this is not yet enough and that Switzerland should do much more about it.