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• Given that troposphere depth ranges from 20 km at equator to 7 km at poles, I would question that the distance the rays travel through air plays a role. For most areas, the depth of airmass and the angle would seem to cancel each other out, or even reverse the claim. Any meteorologists wish to comment, or provide references? Skaranko ( talk) 13:33, 2 December 2010 (UTC) reply

This use of the term "polar climate" seems to entirely skip over an important distinction. That is, the difference between having a reliably thawed summer and having a frozen summer. There is a huge difference between northern Scandinavia, which is full of life, and the lifeless plateaus of central Antarctica. In my view, there should be a page called "Tundra climate" separate from this one, which would only focus on year-round frozen places. D O N D E groovily  Talk to me 16:27, 23 August 2011 (UTC) reply

This may be a good idea, if we expand the article with more detials. Some things to consider:

1. In the Koppen climate classification scheme, polar climate is a superset of both tundra climate and ice cap climate. If we follow WP:SUMMARYSTYLE, we should keep this article, and have sections about tundra article and ice cap cliamte, which use {{ main}} to pint to separate articles. I'm not sure, however, that we have enough material to support a separate article on ice cap climate.
2. We already have an article on a climate very similar to tundra climate: alpine climate. I suspect we don't need a separate article on tundra climate (which would be largely duplicative), perhaps we should simply expand the alpine climate article with information about high-latitude tundra?

I have a suggestion. How about if you start an article on ice cap climate? Once that article become longer than a sub-stub, we can reorganize parts of this article to become a summary of all relevant articles. — hike395 ( talk) 16:16, 24 August 2011 (UTC) reply

The difference betweeen northern Scandinavia and Antarctica is also due to the fact that lowland areas of northern Scandinavia is not tundra, but subarctic or even oceanic (subpolar); see Rovaniemi, Luleå, Harstad. Lowland tundra only exist in a very small, narrow area in the extreme northeast near Vardø. The mountains, above treeline, is alpine tundra. Your main point about the difference tundra - ice cap is relevant. Orcaborealis ( talk) 19:41, 24 August 2011 (UTC) reply

I tried to address Dondegroovily's concerns by adding a paragraph that explicitly describes the difference between ET and EF climates. Hope this helps. — hike395 ( talk) 05:08, 27 August 2011 (UTC) reply

Currently the lead says

Regions with polar climate cover over 20% of the Earth. The sun shines 24 hours in the summer, and barely ever shines at all in the winter (see midnight sun and polar night).

The second sentence is absurd. It confuses the regions with a polar climate with the area right at the North (or South) Pole. In the polar region away from the pole itself, the midnight sun does not last all summer, and polar night does not last all winter. Moreover, areas with a polar climate that are outside the polar region (e.g. much of Greenland), never experience midnight sun or 24-hour night.

I'll change it accordingly. 208.50.124.65 ( talk) 17:30, 4 September 2014 (UTC) reply

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Polar environment 102.46.231.116 ( talk) 12:06, 17 April 2022 (UTC) reply