Featured: PBS Newshour - Greenhouse lab spur student learning on Manhattan rooftops

"At P.S. 333 on the Upper West Side of Manhattan, students are studying science in their very own rooftop greenhouse -- one of 12 built as part of an initiative to put 100 greenhouse labs in New York City schools by 2020. These labs allow students to experiment with hydroponic techniques, and schools donate the extra produce to local charities." - PBS NEWSHOUR