1. Human ecological sustainability -- 2. Review of complexity and complex systems -- 3. Multidimensional challenges to human sustainability -- 4. Mitigations of human impacts through technology -- 5. Sustainable agriculture -- 6. Unconventional foods : insects, plankton, fungi and in vitro meat -- 7. Complex economic systems and sustainability -- 8. Application of complex systems thinking to solve ecological sustainability problems -- 9. What will happen to us? : FAQs on sustainability.