air travel

I’ll admit that math has never been my best subject. But I have a pretty good grasp of its basic concepts — and I wonder if the relatively new phenomenon of “carbon offsets” adds up.

I did the math in my head. We have one car that barely gets driven, a TV and DVD player that get unplugged when not in use, plus a diet free of meat — and I have to admit that I was feeling a bit overconfident when I plugged my numbers into the carbon calculator at www.carbonfootprint.com.