French farmer Nicolas Denieul fills his agricultural sprayer with roundup, a glyphosate based herbicide made by agrochemical giant Monsanto, in Piace, northwestern France, on December 29, 2017. Using a 10-year old conservation farming practice, which highlights crop rotation, plant diversification, and eliminates plowing, French farmer Nicolas Denieul has reduced the use of glyphosate to 1/2 at 1 liter per hectare and per year. / AFP PHOTO / JEAN-FRANCOIS MONIER