We were not at all surprised that “Core Truths,” our July feature about genetically modified organisms (GMOs), garnered a large response—nor were we shocked that much of it was critical. We don’t have the space here to do your dozens of letters and emails justice, but here’s a breakdown of reader opinion:


To address some of your comments and concerns about this complex topic in a nuanced way, writer Brooke Borel has devoted a set of blog posts to GMOs. Read more at

_This article originally appeared in the September 2014 issue of _Popular Science.