ice pond

{{Short description|Natural deposit of ice}}

File:Ice formation Water edge of pond.jpg

File:Ice Cutting at Fresh Pond, Scribners Monthly, August 1875 - reprinted in Fresh Pond, The History of a Cambridge Landscape, by Jill Sinclair, 2009 - Fresh Pond, MA - DSC02564.jpg.{{Relevance inline|date=July 2021}}]]

An ice pond is a large volume of ice or snow produced by natural winter freezing. The ice is then used for cooling or air conditioning.

Before refrigeration was common, ice ponds were mined by ice companies, with product transported to consumers and food businesses through much of the year. Refrigeration technology replaced this technology.

In more recent times, ice ponds have been revived as an environmentally friendly way to air condition buildings in the summer. The best known experiment is the 'Princeton ice pond' by Ted Taylor in 1981. He then persuaded the Prudential Insurance Company to use a bigger pond to provide air conditioning for a larger building.Freeman Dyson, Imagined Worlds, Harvard University Press, 1998, {{ISBN|978-0-674-53909-9}}, page 41 [https://books.google.com/books?id=MOC8UJPuvO8C&pg=PA42 (sur GoogleBooks]).Carter B. Horsley, Prudential project includes 'ice pond' , The New York Times, May 17, 1981, [https://www.nytimes.com/1981/05/17/realestate/prudential-project-includes-ice-pond.html] Taylor also investigated the possibility of using the technology for water purification, which he demonstrated during a non-fiction segment on the 1984 educational series The Voyage of the Mimi.{{Citation needed|date=March 2023}}