This Earth Observatory site contains detailed information on the carbon cycle of the Earth. It provides an explanation of the role of carbon in the geologic carbon cycle followed by a discussion of carbon in the life process, including photosynthesis and respiration. Carbon sinks on land and in the ocean are covered next, followed by the human role in the cycle. Lastly, the activity of the National ... Full description.

This site is designed to belie the statement that the greenhouse effect is caused when gases in the atmosphere behave as a blanket and trap radiation which is then reradiated to the Earth. Students will learn that the atmosphere does not act like a blanket, trap radiation, reradiate heat, trap heat, or behave like a greenhouse. In addition, the analogy of a closed automobile in the sun to a greenhouse ... Full description.

This paper presents the results of a study that includes some basic concepts about the weather, how some children misunderstand these concepts, and possible reasons for the misunderstandings. Student misconceptions can provide an opening for instruction. When teachers know what their students are thinking about a topic they can tailor experiments and activities which challenge the students' thinking. ... Full description.

This site explains the global warming exhibit at the Marian Koshland Science Museum of the National Academy of Sciences and provides information and activities for students in regard to global warming. It includes an introduction to global warming and sections about the greenhouse effect and carbon cycle, as well as causes, impacts, responses and predictions of climate change. Each section has from ... Full description.

This collection of graphic images, prepared by the Intergovernmental Panel on Climate Change of the United Nations, provides visual information on climate change issues that makes it possible to grasp complex facts more quickly and fully than would be possible through written text alone. The images consist of posters, maps, graphs, and flow charts that present introductory material on climate change, ... Full description.