1. In living things, energy is stored in the molecule adenosine triphosphate, called ATP for short. ATP is said to act like a battery, storing energy when it is not needed and instantly releasing energy when it is required. Investigate how energy is stored and the role of ATP in biological processes. Write a report including at least three references.

2. The global reach of the Internet  supports  a  rapid increase in consumer and business e-commerce. Some say e-commerce will result in net reductions in both energy use and global climate change. Using the Internet, interviews with experts, and design-group brainstorming, identify several major ways e-commerce can lead to such reductions. Report your findings in a memorandum having at  least three references.

3. Develop a list of the most common residential cooling options in your locale. For these options and assuming a 2300-ft2 home, compare installation cost, carbon footprint, and annual electricity charges. Which option is the most economical if a 12-year life is assumed? What if electricity costs twice its current cost? Prepare a poster presentation of your findings.