There's a conundrum in the green building world that a lot of people are working on. They're trying to figure out how to build homes that are both sustainable and affordable -- homes that most of us can approach. I could rattle off a list of folks working on this, and Habitat for Humanity would certainly be at the top.
I'm encouraged to see progress on this front. New homes will not be truly sustainable unless they are also affordable for all home buyers.