One of the difficult parts of dealing with climate change is the fact that the culprit (CO2) is a colorless, odorless gas. So people (the real cause of climate change) literally don't see their individual contributions to the problem. If 'out of sight' is truly 'out of mind', then there is nothing more 'out of sight' than CO2!

Here's a wonderful public service advertisement created by the Alliance for Climate Protection which takes CO2 from the realm of abstractions to a visible, tangible concept. This is a strong media piece to send to friends. So watch it and pass it along to those you know who don't quite get it yet. It will help in your efforts to spread the word.

The Alliance for Climate Protection - Black Balloons: Making CO2 Real