But without a big schtick
From the Roemer Report

As part of United Parcel Service Inc.’s effort to reduce its carbon footprint, it’s deployed some 245 new compressed natural gas (CNG) delivery trucks in fleets operating in Colorado and California. In December, reports an item in the Atlanta Business Chronicle, the Atlanta-based shipper said 140 trucks began service in Colorado and the rest in California. UPS runs one of the largest fleets of alternative fuel vehicles in the shipping industry, said the report, with more than 1,900 in the fleet ranging from CNG, liquefied natural gas, propane, electric and hybrid electric vehicles.

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