A rigorous ethical analysis of the obligations of high-emitting developed nations to fund reasonable adaptation measures is beyond of the scope of this paper. (For such analysis see: Brown, 2013, Chapter 7, and Grasso, 2009) Yet the outlines of this analysis are as follows: The developed countries are most responsible for the human-induced warming which the world is experiencing and is threatening hundreds of millions of people around the world because of the levels of both historical ghg emissions amounts and high per-capita ghg emissions that have been increasing ghg atmospheric concentrations. In addition, those most vulnerable to climate change damages are often the least responsible for greenhouse gas emissions. Therefore, those who could most benefit from adaptation measures are often least responsible for excessive greenhouse gas emissions. This is true both at the national and the local level. In addition, those most vulnerable to climate change are often least able to afford adaptation measures such as dikes, irrigation to compensate for droughts, moving away from flood or storm prone areas, installing HVAC systems and implementing improved public health systems. In general terms, a society’s vulnerability to human-induced climate depends upon its poverty. The Pew Center for Climate Change described vulnerability to climate change as follows:
Vulnerability to climate change reflects its degree of exposure and its capacity to adapt. Exposure has two principal elements: the climatic conditions themselves, and the extent and character of the population, wealth, and development exposed to them. Capacity is a society’s ability to adapt to changing climatic conditions, whether by reducing harm, exploiting beneficial new opportunities, or both. This ability to adapt, whether to changing climate or other new circumstances, is in part a function of a society’s level of wealth, education, institutional strength, and access to technology. The nature and the extent of a society’s development, therefore, heavily influence both its degree of exposure to climate risks and its capacity to adapt. (Burton et al. 2006)
Because vulnerability to climate change is both a function of where harsh climate change impacts will be experienced and the financial ability of people to adapt, many poor developing countries are particularly vulnerable to climate change. That those who are causing climate change have an ethical responsibility to protect those who could be seriously harmed by human-induced warming by funding responsible adaptation measures is a conclusion that follows from numerous ethical theories and several international law principles. Almost all the world’s religions, basic human rights theories, and numerous other ethical arguments hold that no person has a right to greatly harm someone else without their consent. In fact, the right to life and security is considered a core human rights principle that has been accepted by almost all nations in the world. All nations that are responsible for the violation of human rights have clear duties to restore conditions required to assure that the rights are enjoyed.