Two nationally recognized speakers on sustainability and economic development share their experiences and wisdom at a March 10 Central Carolina Community College Green Central Speaker Series. Nancy Murray, CEO and co-founder of Builders of Hope, and Wanda Urbanska, author and host of the PBS television series “Simple Living with Wanda Urbanska,” will speak at the 7 p.m. program in the Mary Holmes Meeting Room of the Chatham Community Library on the college’s Chatham County Campus, 764 West St., Pittsboro.