Not surprisingly, "environmental zeroes' eclipsed "environmental heroes' in the first session of the 104th Congress, according to the scorecard released last month by the League of Conservation Voters. The group's 26th annual report rates lawmakers on key environmental votes, such as legislation to close national parks and to sell public lands. Contact the League of Conservation Voters, 1707 L Street, NW, Suite 750, Washington, DC 20036.