Sustainable or "green" energy is a clean and inexhaustible source of power (providing the world as we know it doesn't end any time soon). Each year one 215-foot-tall wind turbine prevents the release of nearly 4 million pounds of global warming CO2. When compared to the average electric generation mix, the carbon dioxide benefit is equivalent to planting over 3,800 trees or taking 315 cars off the road each year!
There are other types of nifty renewable energy available too--small low/impact hydro, solar, and biomass, which is energy created from a combination of organic materials such as discarded wood, plant material, and landfill gasses. Not only is the environmental impact of harvesting, producing, and using these types of "green" energy less than burning conventional oil and coal, but the sources are renewable, making them plentiful for future generations. So how can you get some?
We switched our home and offices over to 100% clean energy in celebration of Earth Day this year, and at .5 cents more per kilowatt hour, our bill is only $7 more per month. That's $84 a year to feel good about doing something big for the environment.