The cornerstone of sustainability is behavior change. A sustainable future requires individuals and businesses to act (e.g., reduce waste, water and energy efficiency, and prevent pollution). To date, most programs have relied on disseminating information. Research demonstrates, however, that simply providing information has little or no effect on what people or businesses do. But if not ads, brochures or booklets, then what? Over the last several years, a new approach, Community-Based Social Marketing, has emerged as an effective alternative for delivering sustainable behavior. The CU Environmental Center is hosting a full-day workshop with respected world expert and environmental psychologist, Doug McKenzie-Mohr. The workshop will introduce CBSM and provide participants with the knowledge they need to deliver the most effective programs.