Title reminds me of this: > Nowadays, at least in the population of the industrialized nations, about 40 percent of the nitrogen contained in the human body ha

Title reminds me of this: > Nowadays, at least in the population of the industrialized nations, about 40 percent of the nitrogen contained in the human body has already taken part in the Haber-Bosch synthesis. (from the German https://en.wikipedia.org/wiki/Haber_process https://en.wikipedia.org/wiki/Haber_process article)