Question: Most of the following selections were taken from letters-to-the-editors columns of newspapers and magazines. Identify any fallacies that may be committed, giving a brief explanation for your answer. Then, if a fallacy is identified, discuss the possible factors that led the arguer to commit the fallacy.

The fact is that the hype over "acid rain" and "global warming" is just that: hype. Take, for example, Stephen Schneider, author of Global Warming. In his current "study" he discusses a "greenhouse effect of catastrophic proportions," yet twenty years ago Schneider was a vocal proponent of the theory of a "new ice age."