I believe with the future change with the energy (energy cost will go up) situation, the pressing talk about climate change, and rise of unemployment, this is all opening the doors for a better future for our built environment. I foresee mandates and codes for better building efficiency. I truly cannot see how this economic situation can hurt the green movement, but bolster and even expedite it.
on a side note, I really don't like calling it "green" building. It sounds like a slang term, not a professional terminology. I wish architects had a 1-2 word they can replace "green building/design"