"Individual Texans can save themselves money, and also take a lot of pressure off of utilities to not have to construct very, very expensive and polluting power plants," said Austin Mayor Will Wynn.

Mayors said use of compact fluorescent bulbs may help reduce electric demand from power plants that emit carbon dioxide, a gas blamed for global warming.

Also attending the Energy Conservation Summit called by San Antonio Mayor Phil Hardberger were Houston Mayor Bill White, Dallas Mayor Tom Leppert and El Paso Mayor John Cox.

The mayors declared the compact fluorescent, the "State Bulb of Texas," and took turns turning on the bulbs in sockets marking their cities in a huge granite map of Texas.

"Energy conservation starts at home," said Cox, who said if every Texas household converted a single light bulb to a CFL, it would mean the equivalent in air pollution reductions of removing 55,000 cars from city streets.