Roundup is a known carcinogen.
So is Testosterone and Estrogen.
I invite you to do without them.
Coffee is a Carcinogen. Popcorn. Whitebread toast. Just ask your State. Alcohol. "Corned", "Cured", or Smoked meats. Many Pickles. Many salted fish (setting aside the possibility of high heavy metal toxicity over time as well).
In fact, why don't you do without anything containing anything on this list.
The Dosage is the Poison.
You want to protect the Earth? Then be honest about it - you want a massive reduction in the human population. The rest will follow.