[T]he regions with the greatest burden of climate-sensitive diseases are also the regions with the lowest capacity to adapt to the new risks. Africa -- the continent where an estimated 90% of malaria occurs -- has some of the lowest per capita emissions of the greenhouse gases that cause global warming. In this sense, global climate change not only presents new region-specific health risks, but also a global ethical challenge. To meet this challenge, precautionary approaches to mitigating anthropogenic greenhouse gases will be necessary [...].Another recent paper follows the same logic (Gian-Reto Walther, Lesley Hughes, Peter Vitousek and Nils Chr. Stenseth, Consensus on climate change, published in Trends in Ecology and Evolution, subscription required).
[C]limate change is already affecting the behavior and distribution of species and the composition and structure of communities and ecosystems [...].The authors then call "for a substantial and long-term reduction in net global greenhouse gas emissions." They fail to consider the potential costs of this policy. As a result, they fail to convince me. So what, I'm not a politician or policy maker.
Scientists need to get more closely involved in opinion-forming to influence more effectively future climate change decisions made by politicians and policy makers.