GrowNYC 7th Annual New Green City

Critics' pick
Union Square Greenmarket
Free
Grab some locally grown veggies at the Union Square Greenmarket (E 17th St at Union Sq West), then collect tips on how to minimize your impact on the environment and make your apartment more eco-friendly. Learn how to weatherize your windows, drop off an old cell phone to recycle, and pick up recipes to match your seasonal produce. For more information, visit grownyc.org.