Quite Simply... A Green Home Provides... 

1. Safer Environment - it prevents moisture, mold and radon.
2. Healthier Environment - the toxins in paint in building materials can be harmful to one's health.  Indoor air quality is huge, just ask someone with breathing problems like asthma.
3. Energy Efficiency - Everyone loves to save money.
4. Environmentally Friendly - Check out the impact that are buildings have on resources today.

WOW!  This is amazing.  There is something to say about the environmental impact of buildings today.  Here's the information from U.S. Energy Information Administration from 2005

U.S. Impact of Buildings on Resources Today

 - 40% of Total Energy Use

 - 71% of Electricity Consumption

 - 38% Carbon Dioxide Emissions

 - 36% of all Greenhouse Gas Emissions

 - 30% of Waste Output

 - 12% of Potable Water Consumption

Just some things to think about... Stay tuned for How Does a House Qualify As Green?