File:Estuary-mouth.jpg

Description

Estuaries and coastal waters are among the most productive ecosystems on Earth, providing numerous ecological, economic, cultural, and aesthetic benefits and services. They are also among the most threatened ecosystems, largely as a result of rapidly increasing growth and development. About half of the U.S. population now lives in coastal areas and coastal counties are growing three times faster than counties elsewhere in the Nation. Overuse of resources and poor land use practices have resulted in a host of human health and natural resource problems.

Source

https://epa.gov/water/waterplan/documents/05guidance.htm

	本图像（或其他媒体）是美国国家环境保护局（EPA）雇员的职务作品，作为美国联邦政府的作品，所有EPA的图像都属于公有领域。
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