SEATTLE - Only in Seattle could an event touted as a way to help the environment get washed out during what is supposed to be the driest time of the year. 'By order of the Mayor' - One neighborhood is closed off to car traffic during selected weekends this summer. On Sunday it was the area around 14th and Republican on Capitol Hill, a residential area that's normally quiet anyway. "I think it promotes awareness of whatever we're promoting awareness of," said resident Thomas Hubbard. "A car passes by every once in a while, just people trying to get home....