Stop Global Warming calculator The Stop Global Warming calculator shows you how much carbon dioxide you can prevent from being released into the atmosphere and how much money you can save by making some small changes in your daily life. It’ll promote action, awareness and empowerment by showing you that one person can make a difference and help stop global warming.
I don’t see a link to the calculator from when I posted this on another blog back in 2008, but they do offer tips to take action.