I have recently complained about the use of LD50 values (the amount of a compound that kills half the exposed organisms after a short exposure) to compare and rank the toxicity of glyphosate. Maybe it’s pure coincidence, or maybe I just wanted to avoid some of the manuscripts waiting for me. But I came across…

For some reason, I recently managed to get into a discussion on glyphosate (the active ingredient of Roundup and other herbicidal products) on twitter. 140 characters might be sufficient for exchanging quick comments (and, obviously, for discussing US politics). But they are certainly not sufficient for exchanging any real arguments. So, here’s the story and…