Wind turbines are seen behind shovelled earth in the open-cast lignite mine Garzweiler of German power supplier RWE near the village of Grevenbroich

Wind turbines are seen behind shovelled earth in the open-cast lignite mine Garzweiler of German power supplier RWE near the village of Grevenbroich west of Cologne April 13, 2013. REUTERS/Ina Fassbender

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