Eutrophication

largest landlocked salt lake, located between Europe and Asia

Chengdu is the capital city of the Chinese province of Sichuan. With a population of 20,937,757 at the 2020 census, it is the fourth most populous city in China, and it is the only city with a population of over 20 million apart from provincial-level municipalities. It is traditionally the hub of Western China.

estuary in the U.S. states of Maryland, Delaware, District of Columbia, and Virginia

thumb|313x313px|Eutrophication can cause harmful algal blooms like this one in a river near Chengdu, China.

saline lake in Imperial and Riverside counties in California, United States

endorheic lake in California

estuary and natural harbor in Florida, off the Gulf of Mexico

coastal saltwater lagoon of the Mediterranean Sea in Spain

French lagoon

natural region in Spain

body of water