A couple of years ago, I earned the EcoBroker certification. My goal: to be ready for clients concerned about their carbon foot print when purchasing a home. I learned about environmental issues and hazards, mitigation options, and also about the latest in home energy efficiency. To my surprise, although I've been able to share some of what I learned during the EcoBroker course, there just hasn't been that much obvious interest from home buyers. A recent study by the National Association of Home Builders helps shed some light. Bottom line, even though prospective home buyers want the benefits of more efficient homes, they are unwilling to pay much more for a “green” home, according to the NAHB member survey. So the interest is there but people aren't likely to pay more than an additional two percent in for the green features. Also from the study, in the west, builders report more interest in water efficiency than in other areas. Now you know.