Clean Energy Fuels Corp. has secured contracts to provide its Redeem ™ renewable natural gas (RNG) to power fleets across multiple sectors, including transit, trucking, airports, solid waste and service vehicles. Redeem became commercially available in 2013 and is derived from capturing biogenic methane that is naturally created by the decomposition of dairy, landfill and wastewater treatment plant waste. As a vehicle fuel, Redeem enables at least 70- percent reduction in carbon emissions when displacing diesel or gasoline. More fleets are transitioning to natural gas-powered vehicles (NGVs) for their performance, cost savings, environmental advantages and extensive nationwide fueling network, with sales this year on an upward trajectory, according to Clean Energy. As of May, year-to-date sales of NGVs surged 43 percent, according to ACT Research, and were also up 10 percent from April's numbers.