Center for International Earth Science Information Network (CIESIN) Columbia University
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The Center for International Earth Science Information Network (CIESIN) is a center within the Earth Institute at Columbia University. CIESIN works at the intersection of the social, natural, and information sciences, and specializes in on-line data and information management, spatial data integration and training, and interdisciplinary research related to human interactions in the environment.

Selected Blog Posts
Report Assesses Risks to World’s Shared River Basins
Risks for the world's Transboundary River Basins are projected to increase in the next 15–30 years, particularly in four hotspot regions: the Middle East, Central Asia, the Ganges-Brahmaputra-Meghna basin, and the Orange and Limpopo basins in Southern Africa.

More Blog Posts
In the Spotlight

The World′s Shared River Basins Are Under Stress

Map of transboundary economic dependence on water resources

International river basins are under growing pressure from water stress related to human activities, impoundments, poor governance, and climate change, a new report finds. The report, Transboundary River Basins: Status and Trends, is an outcome of the Global Environment Facility Transboundary Waters Assessment Programme, led by the UNEP-DHI Center on Waste and Environment, CIESIN, and other partners. The report documents a baseline assessment of all transboundary water resources on Earth, the most comprehensive analysis of its kind to date. A team from CIESIN led by Alex de Sherbinin, CIESIN associate director for Science Applications, and Valentina Mara, senior research associate, authored the chapter on socioeconomic indicators, calculating three indicators of risk: economic dependence on water resources; societal well-being levels; and the risk of climate-related hazards. CIESIN geographic information specialist Malanding Jaiteh and deputy director Marc Levy were contributing authors. Findings include that climate-related risk is linked to high economic dependence on transboundary water resources and low well-being; and well-being is linked to governance capacity to address climate-related disasters. In addition to the Final Technical Report and the Summary for Policy Makers, an interactive results portal provides access to global maps of assessment results and indicator metadata sheets. All assessment results, analyses, and supplementary data may be freely downloaded.

See: TWAP River Basins Report and supplementary publications
       "Report Assesses Risks to World’s Shared River Basins" (blog)
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In the Media