Publisher's Synopsis
Four thousand entries focus on every aspect of earth's environment and the human actions that affect it. With global coverage, the book spans the time before recorded history to the present.
Wideranging coverage includes information on subjects such as activist movements, agriculture and horticulture, air pollution, alien species and species migration, biodiversity, botany, climate and weather, extinct and endangered species, fish and fishing, genetic engineering and biotechnology, land use and development, noise pollution, oceanography, and population growth.
