The population across the globe is steadily increasing, which means that our water resources are feeling the consequences more and more. Water pollution is typically measured in quantities, since the volume of water and the amount of pollution are the two biggest factors in how the environment and its inhabitants are impacted. The main causes of water pollution are sewage, nutrients, waste water, chemical waste, oil pollution, radioactive waste, plastics, and alien species. Alien species includes animals and plants moved from a different ecosystem.
- Surface waters are often polluted through means such as spills from oil tankers that create slick areas among the oceans.
- Approximately half of all ocean water pollution is a result of waste water such as sewage and chemicals being flushed into the ocean.
- Radioactive waste is perhaps one of the most dangerous forms of pollution, as it can end up killing vast amounts of sea creatures at high concentrations.
“As Earth’s population continues to grow, people are putting ever-increasing pressure on the planet’s water resources.”