Turner Construction Company released a report November 8 concluding that companies are less likely to use the U.S. Green Building Council’s Leadership in Energy and Environmental Design rating system now than in recent years. The report, Green Building Market Barometer 2012, surveyed 718 executives from architecture and engineering firms, construction companies, real estate consultant groups, developers, and others and found that the move may be as a result of companies becoming more knowledgeable about green buildings over the past four years, and thus using their own rating systems.