Will the Last One leaving Seattle Turn off the lights

Will the Last One leaving Seattle Unplug the coffee pot; read the brief "...The infamous billboard reading “Will the last person leaving Seattle – turn out the lights” appears near Sea-Tac Airport in 1971. Two realtors put up the billboard (paying $160 rent) as a humorous response to pessimism generated by a recession at Boeing. The Boeing Bust comes as the region's largest employer goes from a peak of 100,800 employees in 1967 to a low of 38,690 four years later. (Compiled from HistoryLink.org).." Good News: Less population mean FAR less greenhouse gases.