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dc.contributor.authorBosetti, Valentinaen_US
dc.contributor.authorPaltsev, Sergeyen_US
dc.contributor.authorReilly, Johnen_US
dc.contributor.authorCarraro, Carloen_US
dc.description.abstractIn the absence of significant greenhouse gas (GHG) mitigation, many analysts project that atmospheric concentrations of species identified for control in the Kyoto protocol could exceed 1000 ppm (carbon-dioxide-equivalent) by 2100 from the current levels of about 435 ppm. This could lead to global average temperature increases of between 2.5 and 6êC by the end of the century. There are risks of even greater warming given that underlying uncertainties in emissions projections and climate response are substantial. Stabilization of GHG concentrations that would have a reasonable chance of meeting temperature targets identified in international negotiations would require significant reductions in GHG emissions below business-as-usual levels, and indeed from present emissions levels. Nearly universal participation of countries is required, and the needed investments in efficiency and alternative energy sources would entail significant costs. Resolving how these additional costs might be shared among countries is critical to facilitating a wide participation of large-emitting countries in a climate stabilization policy. The 2êC target is very ambitious given current atmospheric concentrations and inertia in the energy and climate system. The Copenhagen pledges for 2020 still keep the 2êC target within reach, but very aggressive actions would be needed immediately after that.en_US
dc.publisher|aFondazione Eni Enrico Mattei (FEEM) |cMilanoen_US
dc.relation.ispartofseries|aNota di lavoro // Fondazione Eni Enrico Mattei: Climate Change and Sustainable Development |x80.2011en_US
dc.subject.keywordEmissions Pricingen_US
dc.subject.keywordClimate Stabilizationen_US
dc.titleEmissions pricing to stabilize global climateen_US
dc.typeWorking Paperen_US

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