The basic principle of sustainability is that we live our lives now in such a way that we safeguard the ability of those who come after us to live their lives too. Sustainable living does not simply safeguard future human life, but all life-forms and indeed planet-wide systems upon which life depends. It is easy to find the complex science and politics of the environment daunting. Young people may often feel powerless to act in sustainable ways in their own lives through lack of awareness of the issues, or misunderstandings about how best to live a sustainable life. Also, many responses to sustainability challenges may well be outside of the control of young people, at this stage of their lives at any rate.Secondary Sustainability Assemblies is the perfect resource to accompany the work your school currently does to tackle the issues surrounding sustainability and the environment. Its 40 ready-to-use assemblies have been selected around the four themes of: This small and delicate planet; Use or abuse?; Humans and nature; and Making it personal. Each assembly also includes a 'Something to think about' section which is designed to explore the issues raised in the assembly more deeply and a 'Something to do' activity. These are suggestions for practical activities based on the themes of each assembly, and can be used in a variety of contexts - appropriate subject lessons such as geography, tutor groups or whatever suits your setting.