Trees Save Energy & Keep You Cool
You could save over 20% on your air-conditioning bill per year by planting two 25-foot shade trees on the west and one on the east side of your home. If shade trees were planted around just 25% of dwellings with air-conditioning, the energy savings would be enough to shut down three coal-fired power plants.
This tip is from the The Green Book by Elizabeth Rogers and Thomas M. Kostigen