Figure out what kind of impact your lifestyle has (or doesn't have) on the environment by using one of the calculate your carbon footprint sites below...and don't say I didn't give you choices of which tool to use!
Some sites also offer ways to improve your lifestyle in an eco format. Goals to reach for. I like this!
Remember, greening doesn't have to happen overnight, nor does it need to create lots of stress and strife for you. Try one thing at a time and make changes gradually. There actually ARE ways to be eco-friendly without sacrificing your cozy luxury!
Berkeley Institute of the Environment
Carbon Counter: Separate calculators for home, auto and air.
Carbon Footprint: Calculate, reduce and offset
Environmental Protection Agency
Fight Global Warming: Calculate for just or the entire household