Purdue Climate Change Research Center

GEOSHARE: Geospatial Open Source Hosting of Agriculture, Resource and Environmental Data

Funded by  UK Department for International Development (DFID); the US Department of Agriculture Economic Research Service; UK Department for Environment Food and Rural Affairs (DEFRA) and the CGIAE CCAFS initiative.


Agriculture presents a trilemma. On the one hand, increased food production per capita over the last few decades has lifted millions of people out of starvation. On the other hand, agriculture is a major driver of global environmental change. Balancing the tradeoffs between the need to increase agricultural production (for both food and fuel) while minimizing its environmental impacts is a major challenge of the 21st century. Furthermore, the recent global commodity crisis underscored the vulnerability of the global food system to shocks from extreme weather events, energy markets, and obstruction of the smooth functioning of commodity markets via export bans and other measures designed to force instability onto global markets. We have learned that a “perfect storm” in which all these factors coincide can have a devastating impact on the world’s poor. As we look ahead several decades, will such commodity price spikes become more commonplace in the future? What investments and policies need to be put in place to mitigate the frequency, intensity and/or impacts of such events? In order to answer these questions, improved data base infrastructure is needed in order to support state-of-the-art, spatially explicit modeling of land use, agricultural production, land cover change, and greenhouse gas emissions from these activities. Read More


  • Thomas Hertel, Agrucultural Economics
  • Nelson Villoria, Agrucultural Economics
  • Carol Song, Rosen Cneter for Advanced Computing
  • Navin Ramankutty, McGill University
  • Stanley Wood, IFPRI
  • Wolfgang Britz, University of Bonn
  • Stefan Siebert, University of Bonn
  • Noah Diffenbaugh, Stanford University
  • Glenn Hyman, CIAT
  • Andrew Nelson, IRRI

Contact Information

Purdue University
203 S. Martin Jischke Drive
MANN 105
West Lafayette, IN 47907