Besides Germany, the only countries that don't have speed limits are places like Nepal, where road conditions are so bad that a limit would be beside the point. In other words, it's a little crazy that this is even a topic for debate in Germany.

Countries that work with Europe should feel safer than they would if they worked with non-democratic regimes. Why isn't Europe building infrastructure in Africa instead of leaving it to the Chinese? Why haven't we succeeded in promoting the economic development of our neighbors in the Balkans, instead conceding these countries to growing Russian influence? In an uncomfortable world, we Europeans can no longer sit back and wait for the U.S.A.

Climate protection creates sustainability and jobs in the real economy - in construction, in the production of heavy machinery and in systems engineering.

The G8 nations, together with the five major emerging economies of China, India, South Africa, Brazil, Mexico, use almost three-quarters of the Earth's biocapacity - the capacity of the world's ecosystems to produce natural resources and to reduce harmful substances.

It is clear that Germany needs a foreign policy in which we jointly define European interests. Thus far, we have often defined European values, but we have been much too weak in defining mutual interests. To preempt any possible misunderstandings: We cannot give short shrift to our values of freedom, democracy and human rights.

However, I have a low opinion of people with narrow political horizons. Someone who talks about the environment and knows nothing about economics can make as many mistakes as someone who does the opposite.

The claim that democracy and efficiency are contradictory is nonsense. That's evident in the history of democracy itself, because it is only democrats who were and continue to be capable of learning from mistakes. A more appropriate question is to ask whether a country like China, which has been so incredibly successful economically, is actually inefficient in light of its environmental destruction and its corruption. In China's perception, however, the democratic model is doubtlessly inferior.