You want to do a screening assessment of the energy needed to manufacture two different

types of plain white cotton t$-$shirts, one from a discount store costing $$5$ and another from a

specialty clothing store costing $$15.$ What would the results of using an IO$-$LCA model's

apparel sector suggest about the differences in their energy use for manufacture? What

other differences are likely in their manufacturing energy use?

Consider the case of a university looking to better manage its greenhouse gas emissions.

a$.$ What are the fossil $C{O}_2$ emissions associated with $$1$ million of College, university, and

junior colleges in $2002$ using the EIO$-$LCA $2002$ benchmark producer price model?

What percent of the emissions from each of the top $10$ sectors are direct? What are

the overall direct emissions? What do these results tell you about the kinds of decisions

or activities that might be best managed by an average university in hopes of reducing

fossil $C{O}_2$ emissions?

b$.$ How could you adjust the average College, university, and junior colleges sector fossil $C{O}_2$

results from $($a$)$ to represent a university with a $$200$ million annual budget and that is

considering the purchase of $10\%$ of its electricity from wind power? As a

simplification, assume that no fossil $C{O}_2$ emissions are associated with wind power

generation and the amount of wind power used in the estimate of part $($a$)$ is zero.

c$.$ How could you adjust the average College, university, and junior colleges sector fossil $C{O}_2$

results from $($a$)$ to represent a university with a $$200$ million annual budget and that is

considering the purchase of new equipment to lead to an overall reduction of $20\%$ in

fossil $C{O}_2$ emissions on site compared to the average university?

d$.$ Comment on the overall feasibility and effectiveness of the university's choice to

pursue green power or equipment replacement to achieve GHG emissions targets.