Those who reject integration programs in the long term have as little right to stay in Germany as a hate preacher paid from abroad in a mosque.

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

Turkey is currently seeking to make itself more independent from Europe and is turning to the east. Is that in our interest? Does it help us bolster Western values in Turkey, or at least here at home? Or are we making ourselves weaker overall? At the same time, Turkey is violating our European moral concepts. It's a difficult conflict to endure, and it leads to necessary disputes and debates.

Maybe it is the last chance for Europe to influence standards for world trade. Next it will be between the US and the Asia-Pacific region.

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.

When you think back today to a time more than 70 years ago when Germany was a terrible place, a place people were afraid of, it is a wonderful development that we have gone from being a terrible place to a place that people dream of.

The shadow of an exit of Greece from the euro zone takes on ever clearer shape, repeated apparently final attempts to reach a deal are starting to make the whole process look ridiculous. There is an ever greater number of people who feel as if the Greek government is giving them the run-around.