Acid rain is a complicated subject with eastern states such as Pennsylvania pitted against neighboring middle states such as Ohio in an argument over who's to blame and who's industries should be required to reduce their smokestack emissions most.

For the average individual who wants to make the world a better place, the question of what they can do is a difficult one.

Certainly, if you use less energy, less pollution is created and the health of the environment will be helped. As an added incentive, energy conservation saves you money.

Experts suggest the following ways to use less energy:

1. Use a thermometer to make sure your refrigerator is running at a temperature of 37 degrees Fahrenheit and your freezer at 3 degrees. Clean the coils behind the refrigerator so it will operate more efficiently.

2. Set your water heater to 120 degrees instead of 140.

3. Clean or replace air filters in your air conditioners and heating systems. You'll save money and energy because they won't have to work as hard. These appliances run longer without breaking down too, because they'll be under less strain.

4. Use energy efficient compact fluorescent lights instead of conventional light bulbs. While the fluorescents cost a little more, they use less energy and last longer, plus they don't generate as much heat as regular bulbs.

5. Weatherize your living space. Use caulk and weather stripping to seal your home against leaks. Not only will you help the environment by using less energy, you'll save some money and be more comfortable.

6. Plant shade trees, preferably ones that shed their leaves in the fall. This way once the trees have grown tall enough, they'll block some sun in the summer, keeping you cooler. When winter comes and they've shed their leaves, the sunlight can help warm your house. Plus trees add value when it becomes time to sell your home.