1. You spend less money being energy efficient- Who doesn't like to save money? Being energy efficient allows you to save money because you lower the amount of energy you use. For example, you would save money on gas if you buy a hybrid car.
2. It helps improve the economy- We would spend less money on fuel, and it also makes thousands of jobs for people to make buildings and other things more efficient.
3. It helps reduce the amount of pollution released- We would need to burn less fossil fuels to generate electricity at power plants and our cars would use less fuel to run. Also, I don't think you would like living in a city covered in smog.