Nature and EnvironmentGerman national park on former death stripTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment03/19/2021March 19, 2021The Harz Mountains once divided East and West Germany, but today there's a popular national park there. Where barbed wire once stood, a primeval forest is growing. Now climate change is posing serious challenges.https://p.dw.com/p/3qpNXAdvertisement