What do you use?

OK, we aren't crazy about the eco-solution pictured here. But we do like grassroots solutions for bringing those big, seemingly abstract issues like energy use down to earth.
Big Frog Mountain is a renewable energy company located in our hometown, that specializes in solar tunnels and panels. Their site has energy-use calculators for determining your family's energy consumption and just how many solar panels you would need to get "off the grid."
Or, closer to our UK office: visit the British Petroleum website and check out their carbon footprint calculator.
Or ask Uncle Sam: use the EPA's Personal Greenhouse Gas calculator to determine what effect your energy use is having on the environment and to find out ways to cut back energy use.