Scientists look at how the Danube River can be sustainably managed смотреть онлайн

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The Danube faces major environmental challenges. Scientific experts look at ways to find solutions for heavy sedimentation and erosion after flood protections and hydropower plants have altered the dynamics creating an imbalance. Рекомендуем Scientists look at how the Danube River can be sustainably managed посмотреть онлайн видео бесплатно и без регистрации!