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Mark Pfefferle received a Masters in Environmental Management degree from the Duke University School of Forestry and Environmental Management. Since graduating from Duke he has lived in the Washington D.C. area working for private consulting firms assisting the U.S. Environmental Protection Agency in implementing the storm water management program or addressing other environmental issues.

Currently, Mark implements the Montgomery County forest conservation program for the Maryland-National Capital Park and Planning Commission in Silver Spring. The County has had a forest conservation program in place for 15 years but there is a greater emphasis to protect and enhance the urban canopy in order to reduce urban storm water runoff, local air pollutants, and the urban heat island effect. Much of his work is to minimize forest lost to development and when forests are removed how best to compensate for those losses.

Mark first learned to appreciate the recreational aspects of forests as youth growing up in a “company” town in Canada. Later, he learned of the commercial benefits those same forests provided for newsprint and furniture manufacturing. Even later, the environmental benefits associated with those same forests became evident.

When Mark is not thinking of where the next shade tree or forest should be planted or protected, he spends time in his sea kayak, on his bicycle, or coaching youth baseball. Mark can be reached at or (301) 495-4730.

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