The world maps we know all misÂrepÂreÂsent the world itself: we’ve all heard it many times before, but how well do we underÂstand the nature of that misÂrepÂreÂsenÂtaÂtion? “For many peoÂple, the Earth as they know it is heavÂiÂly informed by the MerÂcaÂtor proÂjecÂtion – a tool used for nauÂtiÂcal navÂiÂgaÂtion that evenÂtuÂalÂly became the world’s most wideÂly recÂogÂnized map,” writes VisuÂal CapÂiÂtalÂist’s Nick RoutÂley. But the MerÂcaÂtor proÂjecÂtion dates to 1569, and “the vast majorÂiÂty of us aren’t using paper maps to chart our course across the ocean anyÂmore, so critÂics of the MerÂcaÂtor proÂjecÂtion argue that the conÂtinÂued use of this style of map gives users a warped sense of the true size of counÂtries.”
Some of the geoÂgraphÂiÂcal misÂconÂcepÂtions GerÂarÂdus MerÂcaÂtor inadÂverÂtentÂly instilled in humanÂiÂty to this day include exagÂgerÂaÂtions of the size of Europe and North AmerÂiÂca. “VisuÂalÂly speakÂing, CanaÂda and RusÂsia appear to take up approxÂiÂmateÂly 25% of the Earth’s surÂface” on a MerÂcaÂtor map, “when in realÂiÂty they occuÂpy a mere 5%.”
FigÂures are one thing, but a fair few 21st cenÂtuÂry carÂtogÂraÂphy enthuÂsiÂasts have also used techÂnolÂoÂgy unavailÂable and indeed unimagÂinÂable in MerÂcaÂtor’s day to show us in a more immeÂdiÂateÂly legÂiÂble way exactÂly how his proÂjecÂtion disÂtorts land massÂes. RecentÂly, a cliÂmate data sciÂenÂtist named Neil Kaye has used the form of the aniÂmatÂed GIF to show what hapÂpens when counÂtries shrink to their actuÂal size on a MerÂcaÂtor map, and when MexÂiÂco and GreenÂland trade places.
As soon as MexÂiÂco goes north and GreenÂland goes south, it becomes obviÂous that both are realÂly of a simÂiÂlar size, though we might have assumed the latÂter to be much largÂer than the forÂmer. And in fact, MerÂcaÂtor proÂjecÂtion makes all counÂtries farÂther from the equaÂtor look largÂer in relaÂtion to all counÂtries nearÂer to the equaÂtor. We’ve pointÂed out the imposÂsiÂbilÂiÂty of makÂing a perÂfectÂly faithÂful two-dimenÂsionÂal world map before here before on Open CulÂture, an imposÂsiÂbilÂiÂty that hasÂn’t stopped carÂtogÂraÂphers from tryÂing to come up with more and more accuÂrate proÂjecÂtions. But even they can’t subÂstiÂtute for an acute awareÂness of how even the most popÂuÂlar maps can be wrong, an awareÂness you can develÂop even more intenÂsiveÂly by viewÂing the many othÂer carÂtoÂgraphÂic creÂations Kaye has postÂed to the “Map Porn” subÂredÂdit — anothÂer techÂnoÂlogÂiÂcal develÂopÂment MerÂcaÂtor sureÂly couldÂn’t have foreÂseen.
RelatÂed ConÂtent:
New York PubÂlic Library Puts 20,000 Hi-Res Maps Online & Makes Them Free to DownÂload and Use
A RadÂiÂcal Map Puts the Oceans – Not Land – at the CenÂter of PlanÂet Earth (1942)
Why MakÂing AccuÂrate World Maps Is MathÂeÂmatÂiÂcalÂly ImposÂsiÂble
Based in Seoul, ColÂin MarÂshall writes and broadÂcasts on cities, lanÂguage, and culÂture. His projects include the book The StateÂless City: a Walk through 21st-CenÂtuÂry Los AngeÂles and the video series The City in CinÂeÂma. FolÂlow him on TwitÂter at @colinmarshall or on FaceÂbook.
WOW !
Check out the Google Earth app. It shows the full globe. This is the closÂest you can get to view the propÂer size of counÂtries, conÂtiÂnents, oceans and their surÂroundÂing areas.
It would have been interÂestÂing to rememÂber why we used these maps in the first time…
this is sadÂly a modÂern misÂconÂcepÂtion / misÂuse, since the first MerÂcaÂtor map was creÂatÂed pureÂly for navÂiÂgaÂtionÂal needs (repÂreÂsentÂing on a unique map all the world oceans and sailÂing direcÂtions as straight lines).
At the same time, CassiÂni maps were introÂduced in the 18th cenÂtuÂry for land manÂageÂment / cenÂsus per counÂtry; and latÂer for milÂiÂtary purÂpose (they repÂreÂsentÂed disÂtance accuÂrateÂly enough on a local map)
Like MerÂcaÂtor, they disÂtort the world since NO PLANAR MAP can ever repÂreÂsent at the same time accuÂrate disÂtance, shape and size.
UnforÂtuÂnateÂly, the use has been lost in modÂern times since this type of map is no longer required at the age of GPS. What was pureÂly a funcÂtionÂal map has now become a politÂiÂcal repÂreÂsenÂtaÂtion, and thus becomes wrong.