Spiegel: Even as Berlin demands that developing countries preserve their rainforests, the country is doing little for biodiversity back home. Bogs and marshland in Germany are increasingly yielding to corn farming — resulting in the release of huge quantities of CO2. It’s hard to tell just by looking at Rhinluch, a region northwest of Berlin, that an ecological drama is playing out here. Lush green vegetation stretches out toward the horizon and cranes glide across the sky. The countryside around the…