Pollution is the introduction of contaminants into an environment which causes harmful effects on life in that natural surrounding environment. Not surprisingly, it is one of the greatest threats to public health and the preservation of wildlife worldwide. Pollution takes many forms: air, water, soil,and radioactive contamination are only some of the ways it can harm the earth. When writing an essay about pollution, you must choose a particular form of pollution and a particular location that it affects; papers that try to include too much will only overwhelm readers. To get a better sense of where to begin, we suggest that you look up samples of essays before crafting your outline. From there, you can compose a great essay with an introduction, body and conclusion.