Meat trends

For every newly converted vegetarian, four poor humans start earning enough money to put beef on the table.  In the past three decades, the earth's dominant carnivores have tripled our average per capita consumption; in the next four decades global meat production will double to 465 million tons.

That is from the new book Heart of Dryness: How the Last Bushmen Can Help Us Endure the Coming Age of Permanent Drought, by James G. Workman.

In Bayesian terms, how should I evaluate this book?  I cracked it open to one page (never start with the table of contents) and found something interesting and blogworthy.  For the random review copy I am sent, the odds of that happening for a single page sample are below 1 in 50.