The founding director of Chattahoochee Riverkeeper, a 7,000-plus member nonprofit environmental advocacy organization established in 1994, plans to retire at the end of this year. Sally Bethea earned her MCP from Georgia Tech in 1980, and has spent the past 20 years passionately protecting the Chattahoochee River. “It's been quite a ride -- peaks, valleys and everything in between,” says Bethea. “Never a dull moment, ever. Much to celebrate, things to cry over, but along the way it's just given me an opportunity to grow and to learn and to hopefully connect a lot more people to this river, because that's what it's all about. We can't lose this liquid lifeline.”