Amory Lovins and the Rocky Mountain Institute present its business driven iniative “Reinventing Fire” to wean the U.S. off fossil fuel by 2050. Why? Because it makes sense! They’ve put up a splash video introduction. Of course, I key in on the building retrofit portion. While they talk about the Empire State Building, the same principles apply at smaller scale in residential buildings, from single family homes to larger multifamily buildings. Energy-efficiency. Renewable energy. The more you save, the more money you have left for your kids’ college education, and for a cold beer on a hot day. So much room for improvement means a big opportunity to improve!