Adam Shriver is Director of Wellness and Nutrition at the Harkin Institute for Public Policy and Citizen Engagement. This essay was first published on his Substack newsletter, Canary in a Cornfield.
Earlier in the year, I wrote a response to some of Republican State Senator Ken Rozenboom’s comments in the Senate Agriculture Committee where he made some interesting claims based on his recent trip to the Netherlands. I pointed out that, contrary to his claims, nitrates have been a very serious issue in the Netherlands for decades and that the European Union had a different way of representing nitrate concentration in water, which was the only plausible explanation I could think of for his claim that nitrates levels in Amsterdam were far higher than what we saw in Iowa last summer.
On April 1, Rozenboom delivered some remarks on the Senate floor that indicated more confusion about the science around nitrates. (He may have been triggered by Democratic State Senator Janet Petersen’s comments the previous day; she asked Rozenboom if a bill allowing boats to display blue lights would be the water safety bill the Senate will consider this year.)
Rozenboom claimed the connection between nitrates and cancer is a “myth,” suggested Republicans had been making great progress on Iowa’s water problems since 2017, and said that if you are really worried about nitrates, you should look at the amount of nitrates in spinach.
You can find the full video of his comments and the responses at this link but I’ve pulled out the relevant sections. Here’s the first relevant clip:
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