Apparently this same story has been circulating since at least 2014, using the same quotes from the same people and organizations, from some menial Googling. So

Apparently this same story has been circulating since at least 2014, using the same quotes from the same people and organizations, from some menial Googling. So far no sources for any claims in the article, though an agronomy student on Reddit appeared to back up the 30% number. This seems like clickbait to me. Edit: This article is from December 5, 2014. https://www.ashlandmass.com/DocumentCenter/Home/View/446 https://www.ashlandmass.com/DocumentCenter/Home/View/446