Vor dem kommenden UN-Klimagipfel in Kopenhagen blickt die Welt vor allem auf die USA. Sie sind neben China mit Abstand der größte Emittent von Treibhausgasen. Spürbare Fortschritte beim globalen Klimaschutz setzen einen erheblichen Beitrag der Amerikaner voraus. Spielraum für eine deutliche...

Natural gas is a significant contributor to European energy supply. Hence, the political crisis between Russia and Ukraine increases fears of the consequences of Russia suspending natural gas supplies to Ukraine and the European Union. The last time this had occurred was in the winter of 2009...

In January 2014, the European Commission proposed a framework for its climate and energy policy up to 2030. It includes targets for reducing greenhouse gases and using renewable energies, but no specific targets for increasing energy efficiency. By 2030, greenhouse gas emissions are to be...

Support through the German Renewable Energy Sources Act (EEG) has led, in the past few years, to an unexpectedly wide expansion of systems for generating solar power (photovoltaics) because the system prices for photovoltaic (PV) systems have fallen at a faster rate than the solar power feed-in...