The Business of Saving Trees

On the website Frontline I read an article called Mexico: The Business of Saving Trees. This article talked about what you can do to save the trees. It is a great role model for everyone to help the planet. They talked about raking leaves and what businesses help the earth. i didn't know that carbon trading was a hot commodity, or that the  Mexican government declared the Sierra Gorda region a protected area 11 years ago.   i would like to learn more about the Sierra Gorda.