Photos: Austin builds on green concepts

For many, when you think of energy and Texas, you think of oil and gas. But in state capital Austin, clean energy is seen as the future, and green buildings like City Hall are in favor.

The Austin Technology Incubator, part of the University of Texas, this week is hosting a clean-energy conference that includes tours of City Hall and the Dell Children's Medical Center of Central Texas. The center is expected to be the first hospital to achieve the highest rating (platinum) for green buildings in the United States.