Everyone has a responsibility to take care of the environment. Give learners a sense of our environmental concerns with a complete course on environmental biology. The textbook resource includes instruction on topics such as population...

Explore a variety of science concepts in an interactive textbook created for middle school scholars. A lengthy table of contents takes readers to pages comprised of a subject overview, outline, and summary. Follow links further to find...

See how air pollution affects human health.

Learn about some sources of outdoor air pollution.

Learn about some of the main sources of indoor air pollution.

This 27-page booklet explains the Clean Air Act using everyday English.

This article from the Library of Congress addresses the sad state of the environment in Uzbekistan caused by chemical, water, and air pollution. Particular emphasis is focused on the Aral Sea.

A textbook supplement site, the basic question addressed here is "How does the Arctic Haze affect environment?"

This study provides an orientation to the methods that are applied to control and prevent environmental pollution. The basic principles followed for eliminating negative impacts on the quality of water, air or land are discussed.

A manual for the inspection of vehicles in Texas, to see if they meet the state government standards for emissions and safety. [PDF]