Eutrophication
Energy
The natural aging process of water bodies, by siltation and organic decomposition, which reduces both water volume and oxygen levels. Surface run-off or airborne deposition of nitrogen and phosphorus accelerate this.
- — Smart Growth/Smart Energy Toolkit Glossary retrieved 2014-05-26
Water
A process where more organic matter is produced than existing biological oxidization processes can consume. The increase in the nutrient levels of a lake or other body of water; this usually causes an increase in the growth of aquatic animal and plant life.