Changing ecosystems / Casper, Julie Kerr

Provides information about the effects of global warming on ecosystems and preservation issues. Discusses the impact on forests, grasslands, arctic and antarctic ecosystems, as well as desert, mountain, and marine ecosystems. Offers suggestions about what we need to do to help prevent this disaster. Provides photographs, maps, charts, a chronology, glossary, an index, and includes sources for additional information.