Greenroof Environmental Learning Laboratory NYC Greenroof Environmental Literacy Laboratory will provide students empirical lessons designed to enhance science, math and aesthetic education in an outdoor observational learning space. GELL will serve as a prototype for raising public school students’ awareness of urban sustainability issues and farm-to-table agriculture. GELL’s impact promises to benefit students throughout New York City. in Public bookmarkswith empiricalenvironmentalgreenrooflaboratoryliteracyoutdoorrooftopspace