Lately everyone seems to be getting on the Carbon Footprint bandwagon but I think a majority may be missing an important factor considering how much damage is allowed to the environment in the name of "reducing carbon emissions. Saving the environment is much much harder than the carbon issue in that environmental damage can be a direct result of trying to reduce carbon emissions. Every solar panel, or CF light bulb or rechargeable battery carries with it a legacy of huge environmental damage. Every single item that is manufactured causes pollution somewhere.
The key to actually saving the environment is to stop creating a need for the things that cause the damage. For example, I may want to buy a new Prius hybrid to lower my CO2 emissions but if I did that then I would be contributing to the environmental damage associated with the manufacturing processes including nickel mining in Canada and battery productions in China that have literally killed the areas around the operations right down to the bedrock.
To actually Save the Environment, consider a few of these suggestions:
Keep your car tuned up. Combine trips.
Learn to live with less lighting. Use lamps where you need them instead of lighting up the whole house.
Adjust your home heating and cooling and use layers of clothing to stay comfortable. Heat less of your house. Consolidate your activities to one or two rooms instead of heating and cooling the whole house.
Eat less meat and grow a little garden. Plants trees or tall plants along the sun side of your house to help cool it in the summer. Buy locally-Avoid foods that have to be shipped great distances.
Use what you have longer. Take care of the things you buy so they will last longer. Re-use what you have for other purposes. Donate unneeded items to charity-buy used stuff at charity stores instead of new when possible.
Rethink chemicals. Buy less of them, use less of them. Most cleaners can be cut 50/50 with water and still work well. Be careful of how you dispose of chemicals. Never put anything in your drains that you wouldn't want distilled into drinking water.
Don't drive when you can walk or bike(even a motorcycle is better than a car.) Don't buy new when you can make do or reuse.
Live slower...live with less...maybe then we can ALL live longer and happier.