Envisioning invites participants to create a shared vision around an issue, and take many forms. It involves the creation of a shared vision among the group, and gives people a positive goal to work towards together that they have created together (GSE827 2010, Tilbury & Wortman 2004).
I think it could be a useful tool to sidestep the hopelessness that can surround may seemingly overwhelming environmental problems. It helps people simultaneously hope for better outcomes, as well as take ownership of the problem and its solutions: while it is important to show people "hell" [the world if the problem is not fixed], you must also show them "heaven" - this also helps them contrast the positive vision world with the status-quo world (GSE827 2010).
