Comments on: Arctic Sea Ice Extent Is Not Extensive https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/ Mon, 14 Sep 2015 14:34:07 +0000 hourly 1 https://wordpress.org/?v=6.4.6 By: Greg Laden https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471770 Mon, 14 Sep 2015 14:34:07 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471770 Sorry, all, chart problem fixed.

]]> By: Géd https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471769 Mon, 14 Sep 2015 14:30:10 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471769 Both charts are exactly the same, it looks like the second one is a copy/paste of the first one whereas it should be different as RickA correctly said.

]]> By: Robert Morgan https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471768 Mon, 14 Sep 2015 12:19:43 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471768 Surely the point of tracking is to try and help us understand cause and effect, so that we can make informed guesses about what is likely to happen in the future – tomorrow, next week, next year, in 20 years, and to test theories to see which ones best predict the effects of particular causes.

]]> By: Greg Laden https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471767 Mon, 14 Sep 2015 12:09:47 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471767 Thomas, good analogy. Or, extended, to track the temperature of the atoms you are made of since the big bang.

]]> By: Thomas P https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471766 Mon, 14 Sep 2015 08:30:31 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471766 Mike, if you get ill and get a high fever, do you think it’s appropriate to track your temperature since you were born or since you got ill?

]]> By: Greg Laden https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471765 Mon, 14 Sep 2015 00:54:51 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471765 Mike, the data here start in 1979. !979 to the present is not five years, it is longer. You may need to get yourself a new calendar.

It is pointless to track ice in relation to the age of the Earth, which is billions, not millions, of years. That would entirely miss the point.

South pole ice is indeed doing something different. But that is pretty useless ice when it comes to the arctic. It is in the south, not the north. It does not “make up” for arctic ice.

The south pole and north pole are such utterly different situations that they can’t be compared, and it turns out that the expansion of extent of sea ice in the south is both a) not the same thing at all as sea ice extent changes in the north and b) caused by … guess what …. climate change!

So, you’re kinda wrong on all points.

]]> By: Mike Johnson https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471764 Mon, 14 Sep 2015 00:18:49 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471764 Pretty pointless to track ice over a 5-year period. Earth is millions of years old. Look at larger trends. Also, south pole ice is expanding.

]]> By: Brainstorms https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471763 Sun, 13 Sep 2015 21:41:32 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471763 It does seem to have changed since I first viewed it. The one I recall had a dashed line… ???

]]> By: RickA https://gregladen.com/blog/2015/09/13/arctic-sea-ice-extent-is-not-extensive/#comment-471762 Sun, 13 Sep 2015 19:07:58 +0000 http://scienceblogs.com/gregladen/?p=21514#comment-471762 Greg: Your second chart looks like the same chart as the first chart (at least on my chrome browser).

From the text I gather it should look different.

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