The article focuses on the EU Sustainability Strategy of 2001, which was reviewed in 2005; and its elements and implementation concerning energy policy and climate protection. The examination of the general part of the EU Sustainability Strategy shows that it lacks both a mission statement and a clear conceptual approach, thus making it difficult to achieve a steering effect. Those parts of the strategy that deal with climate protection show a strong sense of urgency and a great commitment to the EU objective of reducing greenhouse gas emissions. But the - manifold! - measures taken are still too weak. More determination and more effort is necessary to change patterns of thought and behaviour, and it seems that this is a direct consequence of neglecting the necessity of defining a mission statement and a conceptual approach.