Structural engineer Ron Klemencic remembers May 2, 2011, as the “most devastating day” of his career.

As ENR’s 53rd Award of Excellence winner Ron Klemencic tells it, he answered the phone on Thursday, Sept. 13, 2001, two days after the 9/11 terrorist attacks, and heard someone saying, “What are you going to do? This is Nadine Post from ENR. You’re the chairman of the tall buildings council. What are you going to do?”

The inside story of how Virginia Tech Professor Marc Edwards helped propel the emergency of lead-tainted water in Flint, Michigan.

Jason F. McLennan advances the world’s most audacious environmental standards and leads mission to provide super-sustainable buildings to the needy.

While hanging out with friends in his California living room one day in 2006, HT Tran had an epiphany that changed his career path and the direction of his life. The wounded Army veteran whose family fled Vietnam went on to start a fast-growing construction firm that's building San Francisco and careers for fellow veterans.