Passive Houses Worth Examining to Save Energy

Having a housing world full to the brim with green energy options, running from many variations of wind power to solar geothermal and biofuels, one of the most effective and low-cost energy options exists is the simple passive house like the Boston home shown here by photographer Martin LaMonica on CNET.

Elsewhere, Nabih Tahan, in Berkley, California, is one of many architects who