Clean Energy Inks New Deals To Meet Growing Demand For Low Carbon, Sustainable Renewable Natural Gas NEWPORT BEACH, CALIF.--(BUSINESS WIRE)-- Clean Energy Fuels Corp. (NASDAQ: CLNE) announced new renewable natural gas (RNG) contracts as fleets across North America increasingly continue to adopt the clean, low-carbon fuel to power heavy- and medium-duty trucks. The cleanest transportation fuel available, Clean Energy's RNG will power more trucking, refuse and transit fleets to lessen the climate impact of greenhouse gases. (Photo: Business Wire) Clean Energy continues to expand its supply of RNG as the demand increases for the vehicle fuel which is derived from capturing the biogenic methane produced by the decomposition of organic waste from dairies, landfills, and wastewater treatment plants. RNG reduces climate-harming greenhouse gas emissions by at least 70 percent, and even up to 300 percent depending on the source of the RNG, making it a negative carbon fuel.