Just two years ago, Sara Rodites, Owner #937, had never heard of composting. Growing up in suburban Pittsburgh, the concept of reducing the amount of trash she produced was not on her radar. Now a Chicagoan of 6 years, Sara throws away just about one grocery bag full of trash...

Tell us your name and who else shares your fridge. My name is Daniel Stein (Owner #967) and my partner’s name is Milena Ang. Our fridge serves two – plus any friends or loved ones who visit us. Why are you a Chicago Market Owner?

Just how big a container would you need to hold all the non-recyclable, non-compostable waste your family accumulates in a year? Zero waste devotee, blogger and author Bea Johnson can fit the waste from her family of four (count ‘em) from 2017 in...