This always takes me a lot longer to find than i hope, since "roundup inert ingredient toxicity" has, you know, hundreds or thousands of DOI attached to it.

as i've heard said - "Inert doesn't mean inactive in this context"

That's crazy.

However, I'm still left wondering how Roundup-resistant crops work. It's not the effects of Glyphosate they are resistant to, but rather the effects of the "inert" ingredients?

Edit: Also... it turns out that glyphosate is safe?! Conspiracy theory: they found a safe chemical, glyphosate, named it the "active" ingredient, and focused all the research around that ingredient, knowing that it would be found safe. Then they were free make pesticides from unsafe chemicals, swap new ones in, etc.

If you look at the literature, say for "roundup inert ingredient toxicity", lots of papers explain that each manufacturer (or different use pesticides from the same manufacturer) will contain different ratios or mixtures of inactive ingredients, and there's a lot of what i consider damning evidence against the surfactants.