16: Discuss whether you think it makes sense to install high efficiency energy improvements in new homes.
17: Why do you think all new homes are not automatically made as energy efficient as possible?
18: Use Table 26-1 and 2001 electricity intensity to calculate how much emissions would be avoided in a 2,500 ft2 average house in your state with a 40 percent improvement in energy efficiency. Find your state in Table 26-1. Were its CO2 emissions high or low compared to the other states? Explain your observation.
19: Use the United States average in Table 26-1 and the 2001 electricity intensity, and calculate how much CO2 emissions would be avoided in the United States with a 40 percent improvement in energy efficiency.