Center for International Earth Science Information Network (CIESIN) Columbia University
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Selected Blog Posts
Connecting Space to Village in West Africa
A new project, SERVIR-West Africa, will use space-based climate, weather land cover, and other NASA satellite data to address issues such as food security and the availability of fresh water in Ghana, Burkina Faso, Senegal and Niger.

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.

Helping Communities Respond to Climate Change
A new tool helps scientists communicate better with communities on global climate change issues, increasing awareness and stakeholder engagement.

Working with Facebook to Create Better Population Maps
Knowing how settlements are distributed across the landscape—e.g., in clusters, along roads or waterways, or scattered widely—has important implications for designing infrastructure, improving access, and promoting sustainability.

The Changing Face of Air Quality
Looking at regional differences in PM2.5 concentrations gives us a sense of the changing face of air quality throughout the world.

Mapping Tool Lets Users Pinpoint Hazards Data
The SEDAC Hazards Mapper is designed for disaster risk managers, humanitarian response organizations, public health professionals, journalists and others needing a quick assessment of the potential dangers posed by a major hazardous event or developing emergency.

Teen Literacy in Nigeria is Lower in the North
In Nigeria, differences in adolescent literacy rates between states are striking—higher in the South and lower in the Northeast.

In Haiti, Exploring What Drives People to Alter the Landscape
Study of the Pedernales Watershed, located along Haiti’s southern national boundary with the Dominican Republic, may provide insights into the stark contrast in land cover patterns between the two countries.

A Spatial Analysis of the 2008 Itajaí River Valley Disaster
Biophysical and socioeconomic risk factors—such as terrain, population distribution, settlement patterns, poverty, and governance—can combine to produce high levels of vulnerability to heavy rainfall, flooding, and landslides.

Coastal Erosion and Adaptation to Climate Change
Increasing understanding of the extent of coastal erosion and its interaction with other naturally existing geographical features such as mangrove vegetation is one of the areas of research that may help reduce vulnerability of small-island developing states to climate hazards.