As the number of green homes in the Charlottesville area continues to creep upward, the folks at Treehugger remind us that one can never set our sights too high.”LEED has unveiled a new level of certification, Protactinium.In order to qualify for the standard, building designers must commit to a lifetime of celibacy and staff the building exclusively with doe-eyed orphans from third world countries. The building must be a net CO2 sink, producing more oxygen than it consumes. Any bamboo used in construction must be certified panda-free. In the event that straw bale construction is used, the straw must be free-range, sustainably harvested straw.Heh.