In the next few decades, the global human population will exceed 9 billion—and 70 percent will live in cities. How can hunger be addressed in this growing population? On Saturday, Februrary 2, speakers from Columbia University and the Sackler Institute for Nutrition Science will present and lead discussions on this topic, and more, in a day of learning; one topic will be vertical farming.

In the next 30 years, global population is estimated to surpass nine billion people. Will there be too many people, too little food? In this podcast, join NBC News Chief Science and Health correspondent Robert Bazell and a round-table of food experts as they discuss how climate, politics and economics impact food systems and food security.

Guests include activist and best-selling author Raj Patel, geneticist Molly Jahn, and chef and UNICEF ambassador Marcus Samuelsson.

Chef, author, and restaurateur Marcus Samuelsson joins activist Raj Patel and geneticist Molly Jahn for "How To Feed a Growing Planet"—an exciting roundtable at the Museum on January 10, 2013.

Often overlooked root vegetables such as turnips and rutabaga can have a major impact on the Earth’s ecosystem and biodiversity. In this podcast, join chef Alex Guarnaschelli and Eleanor Sterling, Director of the Museum’s Center for Biodiversity, in a discussion about how our food shopping choices can affect sustainable agriculture.

Six exquisite miniature dioramas in the new exhibition Our Global Kitchen: Food, Nature, Culture illuminate diverse methods of farming around the world—including in cities. Learn more about the diorama set in Belo Horizonte, Brazil.