This post reviews the Cancun outcome through an ethical lens in
light of the overall responsibility of those nations that are exceeding their fair share of
safe global emissions in regard to their duties: (a) to reduce greenhouse gas emissions to levels necessary to prevent harm to others, (b) to reduce greenhouse gas emission to levels consistent with what is each nation's fair share of total global emissions, and (c) to provide financing
for adaptation
measures and other necessary responses to climate change harms
for those who are most vulnerable and least responsible
for climate change.