Though there has been an increased focus on climate change in Hong Kong's educational policy and curriculum over the last decade, little is known about the impact of curricular implementation on young people's environmental and climate change-related views, attitudes, awareness, or behaviors. This paper examines the state of climate change education in Hong Kong based on findings from a multi-pronged investigation. The main research questions addressed are: (1) what are Hong Kong secondary students' understandings of and attitudes towards climate change issues? and (2) is there any significant difference between students studying in local and international schools in Hong Kong? The paper provides a content analysis of climate change curriculum in local and international schools. It reports on a large-scale survey of international and local school students' environmental attitudes, and on qualitative interviews of their awareness and behaviors related to climate change. We conclude with reflections on the implications of this study for climate change education in Hong Kong in the future and vital areas for further research.