From BBC News:

A twelve-month “eco-games” study looking into the potential for using environmentally themed social games as education and engagement tools to deepen the understanding and appeal of sustainable living as a lifestyle choice has suggested that playing games can help change attitudes and behavior towards environmental issues. Since the project was launched in March at the Science Museum, London, hundreds of people have participated in “eco fun and games” events across London. Simple, familiar, multigenerational games, like Bingo and Snakes and Ladders, were re-designed to contain positive environmental messages and design easily adopted actions for sustainable living. More information on the study can be found here.