The board of the New York League of Conservation Voters is split over whom to endorse in the race for New York’s open Senate seat — Rep. Rick Lazio (R) or Hillary Rodham Clinton. “Usually there is a clear leader on the issues on one side or the other, but this is one of those times when you get what you really wish for: two candidates who are very concerned about the environment,” said state LCV Communications Director Sharon E. Soons. Lazio counts among his green accomplishments efforts to clean up Long Island Sound and address the problem of acid rain in the Adirondack Mountains. While Clinton has no record to point to, she has pledged her commitment to environmental protection. The New York LCV’s 40-member board is scheduled to meet privately with both candidates on Oct. 12 and then announce its endorsement.