Attention Wal-Mart Shoppers

Adam Werbach was the Sierra Club's youngest president at age 23.

Today, at age 34, he works for Wal-Mart.

And, yes, he is still an environmentalist.

Beginning with Mr. Werbach's voluntary in-store seminars for staff, the company could eventually pass on sustainability principles to its vast legions of customers - more than 100 million of them per week across the U.S. and about seven million each week in Canada. His belief is that changing the mindset of Wal-Mart's employees from within will have a catalytic effect on this century's newborn sustainability movement as powerful as conservation organizations like the Sierra Club had on 20th-century environmentalism.

Read the full article here for an interesting look at the future of the green movement.