Green roofs, which are roofs that are partially or completely covered in some form of vegetation, are tremendous assets to neighborhoods and the environment. They can be used to sound-proof buildings by acting as a sound insulation barrier, as Brooklyn Steel did. They can also cut energy usage, reduce stormwater runoff, improve air quality and reduce the urban heat island effect, which refers to a phenomenon where cities have higher average temperatures than surrounding areas. In addition, they offer green space for urban farming, which is the model over at Brooklyn Grange, a network of commercial rooftop farms in New York City. Read more