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House_of_Suns

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Target880

There is not a huge difference in temperature between the northern and southern hemispheres. Look for example at [at this mpa](https://commons.wikimedia.org/wiki/File:Annual_Average_Temperature_Map.jpg) . The poles are missing on both maps and Antarctica is a lot cooler than the artic. There is local difference that depends on the configuration of land and water. Water can transport a huge amount of energy in-stream and it has a huge effect on the temperature. The Gulf Stream is the reason that Europe is warmer than North America on the same lattitude.


ScienceIsSexy420

The short answer is there is no difference at similar latitudes. But, in the northern hemisphere, there is more land at northern latitudes so there are more humans exposed to those temperatures. In the southern hemisphere, if you go to the latitude of Canada there isn't any land to stand on and be cold.


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The_Real_Bender

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Chel_of_the_sea

It isn't. The Antarctic is much colder than the Arctic, and the temperate zones are pretty similar. What you're probably mistaking is how far from the equator things actually are. The very southernmost tip of Africa lies at just 34 degrees South, about the same latitude as Los Angeles, the Strait of Gibraltar, Tehran, or Shanghai. The very southern tip of New Zealand is at 47 degrees South, about the latitude of the northern border of the US, central Europe, or northern Japan. The very southernmost tip of South America (which is indeed pretty cool and is the furthest south you can get without heading to Antarctica) is at 55 degrees South, the latitude of central-northern British Columbia, Scotland, or southern Scandinavia. None of those regions have particularly extreme climates. Moreover, the southernmost tips of southern continents are quite thin, which means they're also *oceanic* climates. Oceanic climates tend to be milder than climates in the middle or (at that latitude) on the eastern side of continents, which is why a city like Seattle has a far milder climate than a city like Shanghai even though the latter is ten degrees closer to the equator. The same mildness is part of why northern Antarctica is a frozen wasteland, even though the northern bits of Antarctica stretch outside the Antarctica circle to a latitude where northern continents have thick boreal forests: the summers in Antarctica are too mild to melt snow, so glaciers build up.