Artist Molly Dilworth’s paintings serve the general public, even if the general public can’t easily see her work. Her ongoing series Paintings for Satellites turns buildings’ fifth elevation into dazzling murals that mitigate urban heat island effect. Some of the most environmentally aware cities in the world encourage building owners to paint their rooftops lighter, more reflective colors to reduce heat gain and cut energy use and greenhouse emissions. New York City’s CoolRoofs program and climate change advocacy group 350.org recently invited Dilworth to paint the roof of a Brooklyn high school (pictured). For the most part, however, her work remains self-generated, relying on discarded house paint and easy (not always) access to rooftops.