In the United States, about 12 million tons of shingles are taken off roofs, and wind up in landfills every year. However, Northstar Clean Technologies (TSXV: ROOF) (OTCQB: ROOOF), which is focused on the sustainable recovery and reprocessing of asphalt shingles, is diverting asphalt shingles from landfills, extracting the liquid asphalt, fiber and aggregate for re-purposed usage. In fact, the company’s clean technology solution is expected to have a significant impact on the environment by reducing landfill usage, reducing the CO2 impact of asphalt. Also, as noted by Future Market…