David Peck passed this along – it sounds like a very good opportunity. Paraphrased from the synopsis:
Investigations are encouraged to propose plans for research about the nature, causes, and consequences of human activity and natural environmental processes across a range of scales. Projects on a variety of topics (both domestic and international) qualify for support if they offer promise of contributing to scholarship by enhancing geographical knowledge, concepts, theories, methods, and their application to societal problems and concerns. GSS encourages projects that explicitly integrate undergraduate and graduate education into the overall research agenda.
Full announcement here: http://www.nsf.gov/pubs/2012/nsf12570/nsf12570.pdf
Geography and Spatial Sciences Program (GSS)