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Andreas H¨anel (Osnabr¨uck Planetarium)
LED street lighting is developing very fast, although we do not yet fully understand the technique and its ecological impact. Studies of new test installations in some German cities (D¨usseldorf, Hannover, Stuttgart, Westerkappeln) and some first experiences are reported. Meanwhile, politics and administrative structures in Germany are beginning to recognize the problem of light pollution; here we report on some new developments.