Reasons for efficiency: Plain as the smudge on your face

By Elisa Wood February 11, 2010 Remember soot? A long time ago, before global warming, getting rid of soot was considered a good reason to make our energy supply cleaner and more efficient. These small dirty particles, created from auto and power plant combustion, discolor walls and do worse to our lungs. Their harm is immediate, yet we seem to … [Read more...]