ABSTRACT
S. M. Kane et al. emphasize that there is considerable scientific uncertainty about the future magnitudes of climate change and, that their results should be treated as predictions that are conditional on the input assumptions. The time scales for the analysis of climate change are long, and the changes are expected to be gradual. For this type of analysis, the implications of other factors will be just as important for agricultural production as will climate change. The scope of analyses of the effects of climate change should be global, because of the interdependencies among countries through international grain markets, and long-run, because of the gradual nature of climate change. The scientific uncertainty about the nature of climate change implies that analyses of the effects on agricultural production are conditional on the input assumptions. The paper by J. K. Lewandrowski and R. Brazee discusses effects of farm programs in the United States on incentives for farmers to adapt to climate change.
