PerspectiveClimate Change

Threats to Water Supplies in the Tropical Andes

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Science  23 Jun 2006:
Vol. 312, Issue 5781, pp. 1755-1756
DOI: 10.1126/science.1128087

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  1. Global warming in the American Cordillera.

    Projected changes in mean annual free-air temperatures between (1990 to 1999) and (2090 to 2099) along a transect from Alaska (68°N) to southern Chile (50°S), following the axis of the American Cordillera mountain chain. Results are the mean of eight different general circulation models used in the 4th assessment of the Intergovernmental Panel on Climate Change (IPCC) (15), using CO2 levels from scenario A2 in (16). Black triangles denote the highest mountains at each latitude; areas blocked in white have no data (surface or below in the models). Data from (15).