NEW YORK (AP) — There's a whole lot of food for thought at a new art exhibition in New York City."The Value of Food: Sustaining a Green Planet" explores food production and access, environmental and agricultural sustainability and related issues.The multimedia exhibition opened last week at the Cathedral of Saint John the Divine, which has a long history of addressing important issues of the day through the arts, programming and community dialogue.The exhibit features 30 artists whose works are installed in the cathedral's seven chapels and 14 bays.