Toyota Puts Fuel-Cell Semi Truck to Test at Los Angeles Port

The newest heavy-duty truck set to operate at the Port of Los Angeles emits an unusual byproduct that California could certainly use more of: water.

Toyota Motor Corp.’s hydrogen fuel-cell truck, which will emit nothing but vapor, will begin a feasibility study at the port this summer. The Japanese automaker unveiled the concept Wednesday and will start testing it in short-distance fleets that run back and forth between the city’s docks and nearby warehouses operated by retailing giants.