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Life on Earth can be viewed as a complex network of interactions between living organisms and their respective environments. By parsing the natural world into various ecosystems and biomes, the extent and significance of such interaction among species and between organisms and their natural habitats becomes abundantly clear. The study of ecology forms the heart of this engaging volume, which explores the formation of ecological communities and examines the biological diversity that forms the backbone of life on the planet.

Although industrialization and modernization have dramatically improved the quality of our lives, they have also largely contributed to the destruction of our natural resources by engendering waste and creating depletion through overuse. As the world's population continues to grow and consume, litter, chemicals, and a host of other harmful products overrun our land, air, and water. This intriguing volume examines the various pollutants and human activities that threaten the natural world, with a special look at deforestation and desertification.

The sub-zero temperatures and glacial conditions to which the polar regions of the Earth are often subject would make it difficult for many of us to survive there for long periods of time. Yet life is present in both the Arctic and Antarctic, and the lure of discovering new territories and resources has attracted both researchers and explorers to these icy expanses. Readers will journey alongside some of the early expeditions and will learn about the conditions and life that comprise the polar ecosystems.

Global warming, often a source of much politicization and debate, has recast international dialogue with respect to environmental responsibility and activism. While it is generally agreed that global warming can be attributed to human activity, solutions to this phenomenon are unclear and vary with each country. This thought-provoking volume examines the science behind the greenhouse effect, identifies the human role in and response to climate change, and explores the various effects of this worldwide phenomenon.

Earth's biosphere supports several unique biomes and ecosystems. Though they operate as self-contained units, these regions also operate as part of a global network, nurturing interdependence among greatly diverse plant and animal species. The evolution of these wondrous realms--both aquatic and terrestrial--and the various natural elements that distinguish them from one another are the subjects of this comprehensive volume.