The potential impacts of climate change on cropping patterns are highly researchable but present significant methodological challenges. Climate-change impacts are not simply a question of increased or decreased productivity. The impacts may have dramatic effects on land use as well as cropping practices in a given region. Ecological niche modeling and crop-simulation modeling are powerful, complementary tools for examining the spatial and temporal aspects of climate-change impacts. Their successful application, however, requires effective interdisciplinary collaboration, including participation from plant biology