(click on the image to magnify) This joke is not only a joke… : It is a simple way to tell the real truth. Despite mechanisation and chemicals (fertilizers, plant protection products), feeding the world is the result of a hard work, which is anonymous and underevaluated.
In addition, please view this video in English : « Weeds, herbicides and human rights » : Weed killers has been fully a part of human rights in California.