Given that the United States and most other developed anions have for over twenty - five years failed to adequately respond to
climate change because of alleged unacceptable costs to each nation and that due to the
delay ghg emissions reductions now needed to avoid potentially
catastrophic climate change are much steeper and costly than what would be required if these nations acted twenty five years ago, is it just for the United States and other developed nations to now defend further inaction on
climate change on the basis of cost to it?