Whenever people talk about the future, they form a mental image of what things will be like. They think about themselves and the things they know about, and in their imagination build a new picture of what they can expect. As we consider the impacts of climate change on the Great Lakes, there are a number of ways of visualizing those changes. In this activity, students will construct a web of things that may increase or decrease as a result of a changing climate. Constructing a concept map will enable students to list and explain many potential impacts of climate change and discuss various interpretations of the possible impacts of climate change.