The Port of Seattle’s annual greenhouse gas emissions inventory, which was released Aug. 9, shows that it cut emissions from its own operations by 46% in 2021 over 2005 baseline. The port’s Aviation division became the first major operating division to meet Seattle’s ambitious goal to reduce owned and controlled emissions by 50% by 2030. The massive reduction came almost entirely from the purchase of renewable natural gas produced from landfill waste, the port said. The port has indicated that it expects to eliminate all carbon emissions from port-owned and -controlled sources by 2040 and for all entities operating at…