Offers detailed comparative essays on major biomes and their component ecosystems. Includes entries on land biomes and water biomes and covers climate, elevation, soil, water bodies, vegetation, animal life, food web, plant and animal adaptations, endangered species, human effects on the biome and the effects of the environment on humans' culture and economy.

Electronic reproduction.

Coniferous forest -- Continental margin -- Deciduous forest -- Desert -- Grassland -- Lake and pond -- Ocean -- Rain forest -- River and stream -- Seashore -- Tundra -- Wetland.