Cotton is grown on every continent, in a broad range of environmental conditions and under widely disparate conditions of production. It is an important raw material for a highly varied and profitable value creation chain, and it is traded on commodities markets throughout the world. Cotton is at the center of the dispute surrounding agricultural subsidies, and it is an important tool in development aid. International chemical companies have just as much interest in it as do the advocates of ecological farming, since it consumes more water, fertilizer, and pesticides than any other crop.
Cotton was already traveling around the world from producer to consumer in colonial times; all that has changed today is the routes it follows. Thus in one common scenario, cotton fibers from Texas are sent to China to be processed, then wend their way to the fashion runways of Paris, and finally travel as old clothes to Africa, where they are worn as secondhand fashion.