ABSTRACT
One important thing is that significantly large negative effects on agriculture due to climate change must be established in order for the climate-agriculture connection to be important from a societal viewpoint. If this derivative is zero, then, since the effects are multiplicative, there is no net effect on agricultural production. So there is a need to establish that this is a large negative effect before one can proceed in saying that the adverse effects of climate change somehow outweigh the benefits of using fossil fuels in agriculture. Most approaches to climate-impact assessment in agriculture have not taken a broad, food systems approach. In Africa, for example, one of the major constraints on land use in agriculture is the occurrence of waterborne diseases that prevent human occupation. That's something that will be responsive to climate change. It may, therefore, be a different pathway for affecting eventual food consumption.
