Air Pollution Retail Price: $18.95 Our Price: $14.99 Save: 3.96 (20.90%) Availability: In Stock        Every day we hear more about pollution and its negative effects on our environment. Our world is made up of a fragile ecosystem that could be destroyed by mankind's carelessness. Pollution, however, is not a new problem. It's been around since the mid-1800s, when the industrial revolution began. But only recently has mankind recognized the many problems that acid rain, the greenhouse effect, and increases in methane gas in the atmosphere can cause. To protect our priceless environment, we need to be aware of the different ways pollution affects our world. The more you know about the problem, the more you can become a part of the solution. Similar Items you may enjoy! Air Pollution Kit Our Price: $69.19 Pollution on CD-ROM Author: Software Our Price: $9.99 Air Pollution Our Price: $6.49 Pollution and Waste Author: Sally Morgan Our Price: $6.99