, or DDT, is a synthetic chemical that was first made in 1874. Some years later, it was discovered that it was highly effective in killing insects. By 1945, it was widely used in agriculture. DDT was used for years and was used globally before it was discovered that it harms wildlife. Your job is to do some digging and find out exactly what problems DDT caused, what species were affected and how, and what the EPA did about the problem. You will then write an article about DDT.