In what sense is Rees concept of the ecological footprint a limitation on human activities?

Please read the very bottom of the page for IMPORTANT details!!!!!! Question 1. What concepts do you think are important in the Brundtland definition of sustainable development and why ? Provide at least two criticisms that have been made of this definition. are there replies to these criticism? Question 2. In what sense is Rees concept of the ecological footprint a limitation on human activities? Question 3. How is relationship between environmental sustainability, social sustainability. and economic sustainability represented in the three legged stool diagram? how is this representation misleading? Question 4. Explain the difference between economic inequality and social inequality and how are they linked? Question 5. Explain how normative issues arise through the evaluation of policy?