A punster in the utility industry has referred to the burning of ...

[B]

A punster in the utility industry has referred to the burning of coal in the Cool Water plant of Southern California Edison as immaculate combustion. Explain how serious he could have been by reference to Table 12.4 and Figure 12.17.
 
  What will be an ideal response?

Question 2

According to two different estimates, coal reserves can be 250 Gt or 450 Gt, almost twice as much. Why is it so difficult to pin down the reserves' total?
 
  What will be an ideal response?

[succesfull]

Answer to Question 1

While it is clear that the Cool Water plant produced energy and pollution levels
that are much lower than would be allowed by the EPA, there is pollution released. See
Table 12.5 and Figure 12.17 to see just what those levels are, as suggested. With the
evidence to hand, the answer is a value judgment. Most likely, because some pollutants are
released, immaculate combustion will be seen as an overstatement.

Answer to Question 2

Even with knowledge of geology and sampling techniques, all numbers of
unexploited resources are estimates. Local geology can lead to both over- and
underestimating. Sampling could miss a large part of a coal formation, leading to
underestimation, or encounter a small branch, assume it is part of a large formation, and lead
to an estimate that there is more than actually occurs.

[B]

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