Sheri Lewin: The Tie That Binds

Not that long ago, wetland banking was just an interesting idea backed by a gaggle of nature-minded entrepreneurs looking to make a buck by saving valuable swamps and marshes. Today, it's a bona fide industry, with sub-sectors and service providers all across the United States. Now species banking looks set to do the same, and it's Sheri Lewin's job to keep them all speaking the same language.