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MAGICC/SCENGEN has been designed as an accessible piece of software that uses emissions scenarios for greenhouse gases, reactive gases, and sulfur dioxide in order to construct predictions of global mean temperature, sea level rise, and regional climate. MAGICC is a coupled gas-cycle/climate model that has been used in all Intergovernmental Panel on Climate Change (IPCC) reports to produce projections of future global mean temperature and sea level change. Version 5.3 reproduces the results given in the IPCC Fourth Assessment Report (AR4). SCENGEN is a regionalisation algorithm that uses a scaling method to produce climate and climate change information on a 2.5° latitude by 2.5° longitude grid. The regional results are based on results from 20 coupled atmosphere-ocean general circulation models (AOGCMs), which can be used in isolation or in any combination set by the user. This tool can be used to: evaluate the consequences of different mitigation policies; assist the development of adaptation policies by highlighting areas of vulnerability; support the development of regional climate scenarios; inform users about the implications of various socioeconomic development pathways; and provide easy access to up-to-date data derived from AOGCM experiments. It is accompanied by supporting documents available online.
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