David has been an environmental activist in Dallas for more than 20 years, campaigning against polluters and as well as promoting environmentally responsible initiatives. He lobbies for environmental bills before Texas legislators and testifies before the Texas Railroad Commission, Texas Commission on Environmental Quality and the EPA. As the current political chair of the Dallas Sierra Club for almost a decade, David has played a significant role in helping Dallas elect a City Council devoted to sound environmental policies. David also is the founder of the statewide Sierra Club PAC "Turn Texas Green," which helps Sierra-endorsed candidates with funds for their campaigns. READ MORE