INTRODUCTION TO HUMAN IMPACTS ON THE ENVIRONMENTWhat Impact Are We Having?
Environmental Dictionary
Ecological Footprint
Positive, Negative, or Neutral?


WATERFish and Food Webs
The Efficiency of Fishing
Purple Loosestrife & Wetlands
Testing for Contaminants
Local Water Treatment
Building Dams


LANDErosion
Tree Planting
My Patchy Forest
How Do Trees Clean the Air?
Fretting Over Fertilizer
Effects of Recreational Vehicles on the Environment
The Urban Sprawl
The Genetically Modified Organisms Debate


POLLUTION AND ENERGY USEDoes Recycling Really Help?
The Greenhouse Effect Game
Classroom Composter
Alternate Transportation Challenge
Packaging Problems
Battery Battle
Clearing the Air
Are You Energy and Water Efficient?
Energy Trade-off
Understanding Nuclear Energy
Industrial Pollution


INVASIVE SPECIESImproving the Image
Why Are Invasive Species so Invasive?
Dealing with Invasive Species
The Zebra Mussel Problem


ENDANGERED OR EXTINCT ANIMALS AND PLANTSEndangered Animal Encyclopedia
Sea Turtle Conservation
North American Endangered Animals
Rainforest Simulation
Protecting the World's Animals
Antibiotic Resistance


CONCLUSIONDoes the Government Care?
Projecting into the Future
Money Madness