&#x27;The book received mixed reviews, with Jay Lehr of The Heartland Institute saying, &quot;Written in a conversational style that is easy to read and understand, this book can serve as a layman&#x27;s guide, refuting the absurd claims that man controls the climate, while explaining why the current abundance of oil and gas due to hydraulic fracturing will leave all efforts to impose wind and solar energy in our rear-view mirrors.&quot;&#x27;<p>So obviously a book containing some ignorant claims doesn&#x27;t rule out it containing insightful claims, but rejecting global warming outright is pretty damning - what positive externalities, exactly, does he refer to?