“In 1934, a year after the Nazi seizure of power, the Rhenish regional planner and Heimatschutz member Wernher Witthaus declared that the Third Reich had ushered in a new era of environmental stewardship,” explains Thomas Lekan in How Green Were the Nazis? It didn’t take him long. Witthaus the National Socialist preached, “Die ganze Landschaft soll es sein!” Or: “It shall be the whole landscape!” The debate was over. Green was in – and therefore green central leaders. For dear leader Hitler, the vegetarian, was taking Germany into a greener, cleaner period. As well, for Witthaus, the “total state” in...