Sustainability indices for countries provide a one-dimensional metric to valuate country-specific information on the three dimensions of sustainable development: economic, environmental, and social conditions. At the policy level, they suggest an unambiguous yardstick against which a country’s...

In the European Union (EU) and in Germany the transport sector is the only sector with increasing CO2 emissions (in the EU by about 32 % and in Germany by about 1 % since 1990). Especially in road freight and air transport a further strong increase is forecasted. In the transport sector this...

The focus of the paper is on the individual decision of energy consumers, and it's relation to sustainable consumption. Consumer behavior is based on individual decisions, but it depends largely on supply-side measures and an appropriate infrastructure (e.g. the availability of energy-efficient...