With the ratification of the Kyoto protocol in 2004, Liechtenstein undertook to lower the national greenhouse gas emissions to eight percent below the value of 1990. A number of measures, like the passing of the Energy Efficiency Act, the implementation of the Action Plan - Air, or the purchase of steam from the Buchs waste incineration plant by Liechtenstein-based industrial enterprises, have made it possible that a significant part of the reductions of greenhouse gases can occur domestically.