Community development involves building consensus among competing interests and oftentimes fiercely opposed stakeholders. The collaborative skills for this kind of process are at a premium. Planners and others sometimes have to learn this skills on the job, "but the problem with on the job training is, making mistakes in public can be costly," says Roz Greenstein, senior fellow and chair of the Department of Economic and Community Development at the Lincoln Institute. A recently released solution: the Community Partnering for Environmental Results DVD, a simulation-based learning program designed to be used by professionals to practice and refine public outreach and community relations skills, developed by the US Environmental Protection Agency, the Institute for the Learning Sciences at Northwestern University, and the Lincoln Institute. The program consists of three simulated scenarios -- a hazardous waste clean-up site where private and public sector needs collide; an attempt by multiple stakeholder groups with varying interests to write a charter to protect a watershed area; and a politically charged scenario involving rising asthma rates in a big-city neighborhood. In each case skills are needed -- understanding stakeholder concerns and priorities, identifying possible solutions, consensus-building -- to avoid a meltdown.