Erik Daehler loves to travel. But every time he gets on an airplane, he knows his carbon footprint gets bigger. "It's had a horrible imprint on my carbon footprint," admits the 30-year-old physicist and aerospace engineer from Southern California.
What, might you ask, is a carbon footprint?
A carbon footprint is the measure of the amount of carbon dioxide -- the major man-made global warming greenhouse gas -- that goes into the atmosphere as you go about your daily life. Almost everything...Full Story