With three levels to choose from on each page - beginner, intermediate or advanced - this site provides information on the way climate affects our world. Global climate, regional climate, and climate change are all explained. There is an important section on what controls climate change, like the sun, volcanic eruptions, greenhouse gases, snow, and ice. there is a module called Energy Choices and Climate Change that provides a new way to look at issues related to energy and climate change. In the scenarios within this module, you will be able to make decisions about the types and amount of energy used and see what effect your decisions have on the amount of greenhouse gases emitted to the atmosphere. Your goal is to reduce the amount of warming greenhouse gases added to the atmosphere from fossil fuel emissions while keeping costs within reason.