Cotton represents nearly half the total fiber used to make clothing today. More than 90% of that cotton is now genetically modified, using vast amounts of water as well as chemicals. Cotton production is now responsible for 18% of worldwide pesticide use and 25% of total insecticide use. The largely untested impacts of these chemicals on the land as well as human health are beginning to be largely questioned by those working in the industry. These chemicals also are passed along to the people wearing these clothes, as our skin is the largest organ on the body we are taking in these chemicals through our skin and into our bloodstream.