A teaching guide with eleven lessons on the atmosphere, and the impact that different kinds of energy have on the atmosphere and ecological systems. The unit and accompanying PowerPoint can both be downloaded.

Humans are having a negative effect on the ecology of Antarctica. Get the facts on krill harvesting, global warming, and ozone depletion.

Read and take action to fight global warming with these 6 tips, complete with links and other climate change resources.

This lesson addresses the following questions: What is the efficiency with which energy is converted from trophic level to trophic level? What are the differences between assimilation efficiency, net production efficiency, and ecological...

A post-assessment at the end of a unit on global atmospheric change. Students write persuasive letters about an issue related to it, e.g., the greenhouse effect or ozone loss. The letters encourage the recipient to protect the atmosphere...

This site is an interesting article about Lake Baikal in Russia. This unique lake is helping scientists to learn more about the patterns of ecological change in the world and about the history of the world.

Have you ever wanted to be a scientist in the Arctic? Learn from the journals of a research group working on the Arctic sea ice at the northerntip of Canada. Global warming, security of northern routes, pollution, and changes to the...

Promotes the benefits of maintaining a sustainable future for American forests. Outlines initiative to fight urban sprawl and its negative effects on the environment.

An overview of the ecological state of arctic environments, plant, and animals.

In the following instructional activity students learn how geologists locate fossil fuels by using a straw to extract "core samples" from a model that has different layers. Student sheets are provided in English and in Spanish.