The Port of San Diego said May 19 that it’s moving forward with a system to control and capture cargo vessel emissions, also known as a bonnet. The port’s bonnet will be available for use by cargo vessels that aren’t yet equipped to connect to shore power. In support of the port’s new Maritime Clean Air Strategy, San Diego’s Board of Port Commissioners has approved an agreement with L.A.-based Clean Air Engineering – Maritime, Inc. (CAEM) to design, build, and operate a barge-based emissions control and capture device known as the Marine Exhaust Treatment System, or METS. For vessels that…