Horizontal Wind Turbines

http://cleantechnica.com/2009/10/23/the-new-nimby-defeating-wind-turbine/

These turbines mount along the upper edge of a roof rather than requiring a separate structure. Ingenious!

http://www.geekologie.com/2008/08/zero_carbon_footprint_the_sola.php

A solar-powered ice maker. Hopefully this will see some sort of commercialization so that it can be used as a zero-carbon freezer someday.