Whether you believe in global warming or not isn't the issue for me. In my opinion it can't hurt to change one's lifestyle a little and become greener. I haven't driven a motor vehicle of any kind to get to work in 18 years. I've replaced several bulbs in my home with the longer-lasting more energy efficient ones, I installed water displacers in the backs of the toilet tanks many years ago in my house and rental property, I use an electric mower, have had the house insulated inside and out, I recycle, and I am walking and biking now more than ever. It's a start anyway, but I'm sure I am greener than most.
The question is,
how green are you?