However, emissions reductions commitments based upon national economic interest cannot be understood to satisfy any reasonable definition of equity or plausible formula for distributive justice.
Distributive justice requires that parties who want to be treated differently justify their different treatment on the basis of morally relevant criteria.
Distributive justice does not require that all parties be treated equally. But distributive justice does require that parties who want to be treated differently justify their different treatment on the basis of morally relevant criteria. For instance, according to theories of distributive justice, I cannot justify my desire for more food on the basis that I have blue eyes. The color of my eyes is not a relevant basis for unequal treatment when it comes to food distribution. For the same reason, a justification for national ghg emissions reduction target commitments based upon national economic interest alone that does not consider global responsibilities does not pass minimum ethical scrutiny. It is totally ethically bankrupt.
Many commentators on the “equity” issue arising in international climate negotiations dismiss any plea for “equitable” allocations on the basis that because different people reach different conclusions about what equity requires the search for an equitable global solution to climate change should be abandoned. For instance it has been reported that the United States has resisted discussing equity on the basis that there is no objective way of determining what equity requires.
Yet the fact that different people reach different conclusions about what equity means does not mean that all opinions about what acting equity means or entitled to respect. As we’ve seen, theories of distributive justice require that people want to be treated differently identify morally relevant criteria for being treated differently. As we have seen, the color of my eyes is not a morally relevant criterion for being treated differently. Similarly my race is not a morally relevant justification for giving me the right to vote above others.
The world urgently needs a deeper conversation about equity and justice and national climate change policies.
To move the equity debate along, nations should be required to specify specifically how their emissions reductions commitments deal with both the enormity of the challenge entailed by the global emissions budget identified by the IPCC and how their emissions reductions target specifically can be justified on the basis of equity and justice.