1.Drive less. Take bikes, walk or carpool whenever possible.
2.Consider investing in a hybrid or electric vehicle to help prevent against further global warming.
3.Replace all the lightbulbs in and around your home with energy-efficient fluorescents that use fewer watts for the same amount of light.
4.Clean or replace your filters monthly.
5.Choose energy-efficient appliances when it\'s time to buy new ones.
6.Decrease your air travel.
7.Wash clothes in cold water and line-dry whenever possible.
8.Cut down on your garbagebuy fewer packaged materials to prevent further global warming.
9.Unplug electronics when they are not in use, because they still take up energy. At the very least, turn items off when theyre not being used.
10.Buy recycled paper products and recycle as much of your waste as possible. ...more

Several. 1) Stop deforestation and start planting more trees 2) Cut down on various sources of pollution like vehicle, aviation, industrial etc, 3) Increase energy saving / energy efficiency electronic and electrical appliances 4) Increase wind power plants to generate electricity 5) Increase use of solar power for electricity and power generation 6) Look at manufacturing zero emission vehicles 7) Take steps to bring down soil erosion and organic agriculture. These are a few, there might be many more too.

Grow more trees