Cook Islands - Solar Wind
How did solar energy come to the Cook Islands? We have exclusive pictures for you, which Markus Hüsgen and Rolf Husmann captured in 1999. The entire approx. 20 hours of material are ...
School of Sustainability
The "School of Sustainability" is a communication and exchange platform that presents the World Heritage Site of the Upper Harz Water Management and the Harz National Park as a learning location. Central to the learning concept is the concept of ...
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