Carbon Offsets: Creating Something Real fom Hot Air

via ecopreneurist.com

You've probably heard about carbon offsets. They're everywhere these days, and it seems not a week goes that I don't hear about a company pledging to go carbon neutral. And yet, it all seems so'full of hot air. What's real? What do they really do? Which will make the most impact? How are the different purveyors, well, different?