By Esther Wu
If you drive past Gary Gene Olp’s home, you may be struck by its contemporary design. But what makes his house truly different is not readily visible. Unlike most of the homes in Dallas, Mr. Olp’s house not only saves him money, it helps save the environment. “To be more specific, it is helping to preserve the environment for future generations,” explains Gary Gene Olp, who was recently appointed chairman of the North Texas chapter of the U.S. Green Building Council