Some nations have denied responsibility for compensation and adaptation costs in climate change negotiations. Yet norms about responsibility for damages from human-induced climate change are well established not only by most ethical theories but also in a variety of international agreements, including the Rio Declaration on Environment and Development (UN, 1992b), United Nations Framework Convention on Climate Change (UN 1992a). The Rio Declaration on Environment and Development states in relevant part:
- States have, in accordance with the Charter of the United Nations and the principles of international law, the sovereign right to exploit their own resources pursuant to their own environmental and developmental policies, and the responsibility to ensure that activities within their jurisdiction or control do not cause damage to the environment of other States or of areas beyond the limits of national jurisdiction (UN 1992b: Principle 2, emphasis added).
- National authorities should endeavor to promote the internalization of environmental costs and the use of economic instruments, taking into account the approach that the polluter should, in principle, bear the cost of pollution, with due regard to the public interest and without distorting international trade and investment (UN 1992b, Principle 16, emphasis added).
- States shall develop national law regarding liability and compensation for the victims of pollution and other environmental damage. States shall also cooperate in an expeditious and more determined manner to develop further international law regarding liability and compensation for adverse effects of environmental damage caused by activities within their ‘s point is he or hejurisdiction or control to areas beyond their jurisdiction (UN 1992b, Principle 13, emphasis added).
Additional norms relevant to national responsibility for damages caused by one nation to another are contained in UNFCCC including:
- Recalling also that States have, in accordance with the Charter of the United Nations and the principles of international law, the sovereign right to exploit their own resources pursuant to their own environmental and developmental policies, and the responsibility to ensure that activities within their jurisdiction or control do not cause damage to the environment of other States or of areas beyond the limits of national jurisdiction (UN 1992a: Preface, emphasis added).
- The Parties should protect the climate system for the benefit of present and future generations of humankind, on the basis of equity and in accordance with their common but differentiated responsibilities and respective capabilities. Accordingly, the developed country Parties should take the lead in combating climate change and the adverse effects thereof (UN 1992a: Art. 3, emphasis added).
- The Parties should take precautionary measures to anticipate, prevent, or minimize the causes of climate change and mitigate its adverse effects. Where there are threats of serious or irreversible damage, lack of full scientific certainty should not be used as a reason for postponing such measures, taking into account that policies and measures to deal with climate change should be cost-effective so as to ensure global benefits at the lowest possible cost (UN 1992a: Art 3, emphasis added).
These provisions of international law have been agreed to by all almost all nations and establish clear national responsibilities to not harm others beyond their jurisdiction, to pay for the damages to those beyond their borders who are harmed by domestic ghg emissions, and to not use scientific uncertainty as an excuse for failing to take protective action. Yet many nations have caused, and continue to cause climate change damages while they have refused to limit their emissions to their fair share of safe global ghg emissions, compensate those who have been harmed, or provide adequate, predictable funding for adaptation. Yet, the above international law provisions make it clear that nations have obligations to others to prevent climate change damage. Consequently, their failure to take action to reduce the threat of climate change makes them responsible for climate change harms and therefore responsible for funding reasonable adaptation measures of developed nations needed to prevent harm.