A year ago the Belgian government bought 2 million tonnes of CO2 permits from Hungary. This 26 million euros investment aims to fulfill the country’s commitment under the Kyoto Protocol: Decreasing their emissions 7.5 percent by 2012 compared to 1990 levels. Under the terms of the deal, Hungary had to invest the proceeds in the Green Investment Scheme (GIS), an investment vehicle for energy efficiency and renewable energy. Belgium is one of the first countries to experiment with this mechanism. Hence, the results of this deal are decisive for an evaluation at the Summit in Copenhagen.