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NSTA Press Book
Global Environmental Change: Introduced Species
Human activity has introduced species to ecosystems around the globe. Some species are benign or even beneficial; others, like zebra mussels, fire ants, and water hyacinths, are causing native species extinctions and damage to human systems. Can we b...
By Environmental Protection Agency , NSTA Press
NSTA Press Book
Global Environmental Change: Biodiversity
This book uses Costa Rica as a case study because the country's tropical forests contain four percent of Earth's total biological species diversity. Biodiversity's activities and readings help students explore efforts to balance economic expansion wi...
By NSTA Press, Environmental Protection Agency
NSTA Press Book
Global Environmental Change: Carrying Capacity
Carrying Capacity addresses the ability of the Earth to sustain healthy populations of different species. Earth's human population, now past six billion, is expected to reach 10 billion by 2030. This growth will place an even greater strain on the p...
By NSTA Press, Environmental Protection Agency
NSTA Press Book
Global Environmental Change: Deforestation
Washington State’s Olympic Peninsula contains some of America’s only old-growth forest. Its timber supports local, regional, and even global economies. It also supports many biological species and provides a link in biogeochemical cycling. How ca...
By NSTA Press, Environmental Protection Agency