The End of the End of the Earth. Jonathan Franzen

      To answer the question, it’s important to acknowledge that drastic planetary overheating is a done deal. Even in the nations most threatened by flooding or drought, even in the countries most virtuously committed to alternative energy sources, no head of state has ever made a commitment to leaving any carbon in the ground. Without such a commitment, “alternative” merely means “additional”—postponement of human catastrophe, not prevention. The Earth as we now know it resembles a patient with bad cancer. We can choose to treat it with disfiguring aggression, damming every river and blighting every landscape with biofuel agriculture, solar farms, and wind turbines, to buy some extra years of moderated warming. Or we can adopt a course of treatment that permits a higher quality of life, still fighting the disease but protecting the areas where wild animals and plants are hanging on, at the cost of slightly hastening the human catastrophe. One advantage of the latter approach is that, if a miracle cure like fusion energy should come along, or if global consumption rates and population should ever decline, there might still be some intact ecosystems to save.

      Choosing to preserve nature at potential human expense would be morally more unsettling if nature still had the upper hand. But we live in the Anthropocene—in a world ever more of our own making. Near the end of Jamieson’s chapter on ethics, he poses the question of whether it’s a good thing or a bad thing that the arcadian Manhattan of 1630, lushly forested and teeming with fish and birds, became the modern Manhattan of the High Line and the Metropolitan Museum. Different people will give different answers. The point is that the change occurred and can’t be undone, as global warming can’t be undone. We were bequeathed a world of goods and bads by our forebears, and we’ll bequeath a world of different goods and bads to our descendants. We’ve always been not only universal despoilers but brilliant adapters; climate change is just the same old story writ larger. The only self-inflicted existential threats to our species are nuclear war and genetically modified microorganisms.