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.