Dear Editor, Because Austinites care a lot about environmental concerns, I think they should know this. Two weeks ago John McCain was the only senator to duck a crucial vote on the future of clean energy in America – dooming to failure the measure that would have helped make renewable energy more affordable and accessible. Now it turns out this missed vote is part of a pattern. Last week, the League of Conservation Voters released the 2007 National Environmental Scorecard giving Sen. McCain a score of zero. According to the scorecard, McCain was the only member of Congress to skip all 15 crucial environmental votes scored by LCV.