Some philosophers have begun writing sympathetically about predator elimination as a way of reducing animal suffering. From an environmental perspective this is somewhere between naïve and potentially disastrous.
I worry that even well-intentioned attempts to "improve nature" (say by reducing suffering) will make things worse even in their own terms.
Philosophers tend to radically underestimate the distance between abstract principles (such as "reduce suffering") and what it might actually mean for people to act on them.
The problem is that for almost any feature of humanity that you can name, whether it's the ability to suffer, whether it's the capacity to reason, whether it's having lives that can go better or worse, there are at least some other non-human animals that have all of these features as well. So to exclude non-human animals from the range of moral concern but to include all humans, just seems morally arbitrary.
Even if Bill McKibben were to become dictator, future generations would suffer because of the carbon we had already emitted.
People will suffer and so will nature, but life is likely to go on with a great deal of loss and mourning. Human adaptability and resilience will still be alive, and so will that great need and resource of ours called love.
The idea that we would raise billions of sentient animals, treat them horribly, pollute our waterways with their waste, compromise the effectiveness of our antibiotics so that they grow faster, and then slaughter them with little regard to their suffering so that we can feed off their corpses, will seem to most people unthinkably cruel and barbarous - sort of in the way that we think of medieval punishments, or Europeans today think of the death penalty.
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