There have been many studies of the exchange of CO2 between the surface and the atmosphere; indeed there is a large international program (Fluxnet) addressing this issue with globally-distributed sites (q.v. http://fluxnet.ornl.gov/maps-graphics). Inspection of the distribution of Fluxnet sites indicates a paucity of observations in two of the areas of greatest population growth (and hence of the greatest pressure on agriculture): the Indian sub-continent and central Africa. Obtaining understanding to help feed the growing populations in these regions while minimizing adverse environmental impact presents a challenge. Maintaining instrumentation of the kind common in North American and European studies would be technically demanding, and analyzing data in the manner now common to many researchers would require access to uncommon computers.