Self-determined pro-environmental behaviors can be developed by applying SDT in environmental education. These pro-environmental behaviors are more integrated to individuals’ self-system, more persistent and more long lasting (Green-Demers, Pelletier & Menard, 1997). For example, using carpooling regularly in daily life will be a more self-determined and longterm pro-environmental behavior (Osbaldiston & Sheldon, 2003). For more difficult pro-environmental behaviors, more self-determination to achieve the behavior is needed. For instance, a lower level of self determination may be sufficient to recycle at home whereas more self- determination is required for a person who lives away from recycling bins to contribute to recycling