A recently released report on climate change commissioned by the World Bank is entitled Turn Down the Heat: Why a 4oC Warmer World Must Be Avoided.  --  The report, by the Potsdam Institute for Climate Impact Research and Climate Analytics, warns that "without serious policy changes" the average global temperature will rise by 4 degrees Celsius by the end of the century, causing "the inundation of coastal cities; increasing risks for food production potentially leading to higher malnutrition rates; many dry regions becoming dryer, wet regions wetter; unprecedented heat waves in many regions, especially in the tropics; substantially exacerbated water scarcity in many regions; increased frequency of high-intensity tropical cyclones; and irreversible loss of biodiversity, including coral reef systems," in the words of 52-year-old World Bank President Jim Yong Kim in his foreword (p. ix).[1]  --  The 84-page report is a detailed depiction of the consequences of these changes.  --  It concludes:  "This report . . . challenges an often-implicit assumption that climate change will not significantly undermine economic growth. . . . The burden of climate change in the future will very likely be borne differentially by those in regions already highly vulnerable to climate change and variability. . . . [T]he projected 4 degrees Celsius warming simply must not be allowed to occur -- the heat must be turned down.  Only early, cooperative, international actions can make that happen." ...


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TURN DOWN THE HEAT: WHY A 4-DEGREE-CELSIUS WARMER WORLD MUST BE AVOIDED


** A Report for the World Bank by the Potsdam Institute for Climate Impact Research and Climate Analytics **

November 2012

http://climatechange.worldbank.org/sites/default/files/Turn_Down_the_heat_Why_a_4_degree_centrigrade_warmer_world_must_be_avoided.pdf