New York City chefs, including Marco Moreira of Tocqueville and Larissa Raphael of Telepan, will speak on sustainable food at Manhattan's Follow the Frog event at the Union Square Greenmarket's North Pavilion. Follow the Frog Week (Sept. 16-22, 2013), presented by the Rainforest Alliance, is a campaign to encourage the world's eaters to make sustainable choices and promote a healthy planet.

Participants will also have access to giveaways, contests and more. Admission is free and registration is not required.