The document discusses Pareto analysis and its use. It explains that Pareto analysis identifies the top 20% of causes that need to be addressed to resolve 80% of problems. It also discusses how to use Pareto analysis by identifying and listing problems, identifying root causes, scoring problems, grouping by root cause, adding scores, and taking action. Finally, it provides an example of using Pareto analysis to identify that the major causes of garbage in cities are paper, food scraps, yard trimmings, plastics, and metals.