1. Define the "rebound effect" and apply this to the use of conventional fossil fuels. Describe why this is an important concept for environmental impact.

when energy gets cheaper - we use more

if the environmental impact is from energy extraction and use, then this increased use would cause more damage

You needed to describe how this relates to fossil fuels, not just any product.

2. heating and cooling are the only operating costs (lumber is used to build the house, not to burn)

3. aluminum recycling is LCA, disposal of a battery is LCA, car costs represented as an area os the ecological footprint, burning gas to make CO2 is the carbon footprint

4. the Happy Planet index is the (life time * satisfaction)/(ecological footprint), not income level directly

5. An accounting system for an environmental problem is supposed to help make an informed decision.

This wasn't a question about giving the "answer" to an environmental problem but how we use an accounting system (as described in the text) to collect information and make better decisions.

a.Give a short description of the cycle from the event to making a judgement.

event, observation, report, decision

b. Provide an example of a problem that could be addressed through an environmental accounting process.

you need to provide a data driven decision such as

c. Explain how you make a decision based on this process and what information would be crucial.