An assisted migration of beech trees in need of protection from climate change is bearing its first fruits in France after 13 years, with saplings now gracing the former World War I battlefield of Verdun. An assisted migration of beech trees in need of protection from climate change is bearing its first fruits in France after 13 years, with saplings now gracing the former World War I battlefield of Verdun. Ecology Phys.org – latest science and technology news stories