This document discusses the causes and consequences of three types of pollution: water, air, and land. It identifies the main causes of each type as either point sources (identifiable) or non-point sources (less defined) for water; burning fossil fuels and industrial/agricultural emissions for air; and construction, agriculture, domestic/industrial waste dumping for land. The consequences discussed include water contamination, global warming, acid rain, smog, and disruption of ecosystems and wildlife. The document concludes with recommendations for reducing pollution like using less carbon-intensive transportation and purchasing renewable energy.