Editing Western Hemisphere (section)

==Geography==
[[File:Blue Marble Western Hemisphere 2022.jpg|thumb|The Western Hemisphere in a photo taken from [[Deep Space Climate Observatory]] in June 2022]]
The Western Hemisphere consists of the [[Americas]], excluding some of the [[Aleutian Islands]] to the southwest of the [[Alaska]]n mainland; the westernmost portions of [[Western Europe|Europe]] and [[West Africa|Africa]], both mainland and islands; the [[Cape Dezhnev|extreme eastern tip]] of the [[Russia]]n mainland and islands ([[North Asia]]); numerous territories in [[Oceania]]; and a large portion of [[Antarctica]].

The center of the Western Hemisphere is located in the [[Pacific Ocean]] at the intersection of the [[90th meridian west]] and the [[Equator]], among the [[Galápagos Islands]]. The nearest land is [[Genovesa Island]] at {{coord|0|19|N|89|57|W|format=dms|display=inline}}.

The [[list of highest mountains on Earth|highest mountain]] in the Western Hemisphere is [[Aconcagua]] in the [[Andes]] of [[Argentina]] at {{convert|6960.8|m|ft|abbr=on}}.<ref name="UNC-Sigma">{{cite web|url= http://www.uncu.edu.ar/novedades/index/informe-cientifico-que-estudia-el-aconcagua-el-coloso-de-america-mide-69608-metros|title= Informe científico que estudia el Aconcagua, el Coloso de América mide 6960,8 metros|language= es|trans-title= Scientific Report on Aconcagua, the Colossus of America measures 6960,8m|year= 2012|publisher= [[Universidad Nacional de Cuyo]]|access-date= September 3, 2012|url-status= dead|archive-url= https://web.archive.org/web/20120908061725/http://www.uncu.edu.ar/novedades/index/informe-cientifico-que-estudia-el-aconcagua-el-coloso-de-america-mide-69608-metros|archive-date= September 8, 2012}}</ref>

The [[List of tallest freestanding structures|tallest freestanding structure]] in the Western Hemisphere is the [[CN Tower]] in [[Toronto]] at {{convert|553.3|m|ft|abbr=on}} and the [[List of tallest buildings|tallest building]] in the Western Hemisphere is [[One World Trade Center]] in [[New York City]] at {{convert|541.3|m|ft|abbr=on}}.

===Alternative definitions===
In an attempt to match the Western Hemisphere more closely with the Americas, some sources use the [[20th meridian west]] and the diametrically opposed [[160th meridian east]] to define the hemisphere.<ref name=olson>{{citation | last = Olson | first = Judy M | contribution = Projecting the hemisphere | url = https://courseware.e-education.psu.edu/projection/chapter4.html | title = Matching the map projection to the need | editor1-last = Robinson | editor1-first = Arthur H | editor2-last = Snyder | editor2-first = John P | year = 1997 | place = Bethesda, MD | publisher = Cartography and Geographic Information Society, American Congress on Surveying and Mapping | access-date = 2020-03-03 | archive-date = 2016-03-14 | archive-url = https://web.archive.org/web/20160314130049/https://courseware.e-education.psu.edu/projection/chapter4.html | url-status = live }}.<br>- {{citation | contribution = Western Hemisphere | title =  Merriam-Webster's Geographical Dictionary | edition = 3rd | year = 2001 | place = Springfield, Massachusetts | publisher = Merriam-Webster | page = 1294}}.</ref><ref name=brittanica/> This definition excludes all of the European and African mainlands, but still includes some islands associated with these continents, more of eastern Russia and Oceania, and part of Antarctica. It includes all islands of Alaska, but excludes a small portion of northeast [[Greenland]]. There is no hemisphere that includes all of the Americas that also excludes all land outside of it, regardless of the meridians or points chosen to define it.