Mike MacDonald is photographer and author of My Journey into the Wilds of Chicago: A Celebration of Chicagoland’s Startling Natural Wonders. He talks about how, by by picture, prose and poetry, he wants others to share his passion for Chicago's natural areas. Liz Lyon, manager of the Plant Chicago Farmer’s Market, Alex Poltorak, founder of The Urban Canopy, and Corey Chatman, project manager at the Experimental Station, discuss why running a successful farmers market can be so difficult.