by Rishidev Chaudhuri
Where does the environmental movement get its moral force? There are any number of practical reasons to care about, say, global warming, given that a world with a dramatically different climate will probably be dramatically less comfortable for us. But this is quite different from the set of reasons usually advanced by environmental advocates. These center around preserving the environment for its own sake and limiting human impact on the natural world. And they typically seem to be making a strong ethical claim. Humans have spoiled a once pristine natural world; humans, through greed, have upset the natural balance. Implicit in this narrative is a warning that, depending on your preference, is Promethean or Edenic: we have reached too far in our attempt to escape our natural state and must now bear the consequences.
These are unusual arguments. Most of our moral intuitions and behavior is founded on relationships to other moral subjects. And there is a very strong and compelling moral reason to address global warming that does involve humans. A changing climate will affect and is affecting the livelihood of millions of people and these people are disproportionately poor and vulnerable. Our moral obligation to mitigate the effects of warming on the environment can be seen to stem from our obligation to other human beings.
This argument makes no reference to the natural or to preservation as an intrinsic good. It also involves a complex mix of factors to be weighed against each other. We are obligated to help preserve the environment because of our obligation to help give people a decent quality of life, but there are many other ways this can be carried out. For example, making people richer and giving them lifestyles closer to those in the developed West would also have the same effect, but this might act against the preservation of the environment. Given that we rarely see these sorts of debates in the environmental movement, it seems that the impact on people is not the primary motivation.
So what about moral arguments that are not centered on humans? Do we have more than practical and aesthetic motivations to preserve the climate as it is now?

The late economist Hyman Minsky wrote that after fortunes inflate on the back of a speculative bubble, and after investors’ irrational optimism and overvalued assets inevitably collapse, an economy enters a “period of revulsion,” when people remember that it’s risky to bet big on an uncertain future. Likewise, it’s always during the depths of a hangover that a drinker remembers how whiskey invites its own overconsumption and swears that the only way to avoid another descent into this purgatory is to never touch the stuff again. But after the fog leaves and with a clear head regained, he forgets the pain after the party and declares another Manhattan to be an eminently reasonable investment. Of course, the trick is to recall at just that moment how miserable you’ll be after another three. A pessimistic economist faces the same cyclical popularity as a tee-totaling friend; a consoling voice the morning after becomes a buzz killer as soon as night falls again.