AC2007, both my characters together (Far Wolf is being worn by my old friend, Baconstrip). Global Warming was the buzz-word at the time, and this was the first year that AC was at its new current location in Pittsburgh.

The sign (a play off their theme of "Looking to the Future") had two sides:

Side 1: "Looking to the Future: Global Warming = Meldown!"
Side 2: "Anthrocon Will be Underwater. Learn to Scuba Dive!"

:)