The twentieth century turned Western civilization upside down. Wars and upheavals resurrected the dark ages. It was extremely violent, perhaps the most violent era in history. War War was especially virulent and, twice, it wrecked Europe and the world. It took the form of asphyxiating soldiers with neurotoxic agents, incinerating cities by bombing, genocide, destruction of villages and the slaughtering of farm animals, famine, ecocide and blasting two Japanese cities with atomic weapons. This kind of ferocious warfare was probably the result of failing to tame the factory civilization of the nineteenth century. The two world wars of the twentieth century killed close to 80 million people and left a terrible legacy for the future of humanity. Factories Mechanical and chemical and pharmaceutical factories were devastating the land and poisoning people on a massive scale. Skies were turning black; rivers were catching fire; pollution from the factories was co...