Finnish university students (n = 198) assessed their attitudes and achievements in implementation of sustainable development in their daily life. The data were collected using a theory-grounded semantic differential technique. A measurement instrument was created by balancing 36 variables of environmental, economic and social sustainability. As a result of logistic regression analysis post-material behaviour was predicted statistically significant by the following attitudes: health-promoting lifestyle, recycling, organic food, water saving, maintaining of civil society, favouring eco-labelled products and services, and favouring renewable energy resources. These themes are discussed in the paper and a model of sustainability promoting social change is created.
Keywords: sustainable society, sustainable development, post-materialism, attitudes, behaviour change, social change, high consumption society