Celebrating the UN Decade of Education for Sustainable Development (2005-2014), this paper presents results of two exploratory surveys taken in the province of Manitoba, Canada in January to March 2008. A random sample of 506 adults completed a mailed out questionnaire designed to measure respondents' knowledge, attitudes and behaviours concerning the basic themes of the UN Decade. In the same period, a convenience sample of 294 students in grades 6-12 in four schools was surveyed based on a simplified version of the same questionnaire. Using these two datasets, we constructed somewhat crude standardized tests and showed that for students and adults, having attitudes favourable to ESD/SD is relatively more influential than age, levels of education and knowledge for behaviours favourable to ESD/SD. The differences are that (1) gender was most influential for the student samples, while favourable attitudes were most influential for the adult samples; and (2) while attitudes were practically equally influential to knowledge (though numerically more influential) for the student sample, attitudes were vastly more influential than education for the adult samples.