Photo by cycletheghostround.It’s 8:30 this evening. Lights suddenly dim all around you, in some cases going out all together. No, it’s not an Alex Proyas tale come to life. It’s Earth Hour, when environmental activists encourage everyone to turn off the power for an hour to show their disdain for climate change. Unsurprisingly, Washington, D.C. was a flagship city for last year’s event, and once again the Wilson Building, the Reeves Center and One Judiciary…