UPDATE: As of December 1, 2024, it appears that the water budget modeling software referenced and utilized in this activity has been taken down. For this reason, this resource is currently listed FREE of charge until an alternate web site can be found. Scope of the Lesson:One of the challenges facing educators of climate change is the spatial and temporal separation of the effects of climate change that is perceived by students. In order to help with these separation issues, students need to und