I’ll give you a hint: Go online and read the following article: “The Journal of Physicians and Surgeons: Ideology Trumps Science-based Medicine.”

I suggest that Sigman check the veracity of his sources.

Incidentally, see the story on Page 1B (Herald, Nov. 7) with the headline, “World Carbon Pollution Hits Record,” and this is from Michael Jarraud, secretary general of the World Meteorological Organization.

Linda Tikalsky

Bayfield