Again, holy sh#t...
For one, when you copy someone elses review of a book, you might want to put it in quotes, or something else that offsets it, so it doesn't look like you're trying to pass off someone else's professional writing as your own. Second, Dr. Singer is outspoken against the health risks of secondhand smoke...lulz. I doubt I need to say more about that. Three, the book was written in 1997 (I think revised in 2001?)...hopefully you understand a lot has changed/been added in 15 or more years. And while Dr. Singer has published some papers on this topic, he seems far more interested in writing books about it. Yes, no monetary motive there whatsoever...
As for losing funding if global warming is debunked, that is utter bullsh#t. The ability to understand, model, and predict (when appropriate) past, current, and future global climates is of serious interest in many areas. There would be no lack of funding for anyone doing research in that area, even if it wasn't specifically linked to global warming anymore. So that argument is complete nonsense and only shows a lack of understanding about the current playing field of scientific discussion.
And once again, there are far, far more consequences to the average global temperature rising than just hotter summers in South Dakota. And even if they're not as immediate as your numbers, it's still a real issue that needs to be worked on. This isn't a few scientists, but a global consensus of virtually everyone working in the related fields. You can't buy that many people off, there's no conspiracy. And if you could buy that much research, the oil companies would have already done it to promote their interests. But they haven't.
If you truly believe the main consequence for discussion is potential discomfort due to hotter summers in South Dakota (or anywhere, really), then there's no point in continuing this discussion. I will leave you to your own thoughts.