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Because their corporate masters told them to. Sad, isn't it.
Pretty much what +Zaine Ridling said.

exploiting the arctic is far more interesting for the corporations - and their money ultimately influences both politicians and main stream press.

Unless the topic will sell enough issues of course ( which the melting pole does not do - until it's effect gets straight up in peoples faces of course )
Historic in terms of humanity's observations... Since the region was once temperate, there are, of course, lower ice levels. The chart takes into account about four decades... I wonder what the numbers would have looked like around 500 AD when the earth suddenly and briefly warmed.
I think they're probably all aware of the story, but are waiting for the other shoe to drop. The minimum is still around three weeks away, and the official announcement of September Minimum Extent won't be until early October.
"Why do you think Greenland is called Greenland? "

Obviously not because of the rather large and ancient Greenland Ice Sheet.
My understanding is that it was propaganda to get people to move there. It certainly wasn't very green at the time it was named. - "The name Greenland comes from the early Scandinavian settlers. In the Icelandic sagas, it is said that Norwegian-born Erik the Red was exiled from Iceland for murder. He, along with his extended family and thralls, set out in ships to find a land rumored to lie to the northwest. After settling there, he named the land Grœnland ("Greenland"), supposedly in the hope that the pleasant name would attract settlers. "

Exiled murderer turns into lying marketeer... sounds like a familiar story, somehow.
When Greenland is uncovered, there will be far too many other problems, as 80% of the world population will be trying to find someplace new to live from sea level rises.
The most frightening thing about that graph is the trend is still straight - all the other lines have begun to curve back, or "flatten" by this time of year.  This year's melting isn't even slowing down yet.
That's right. Sea ice minimum is usually mid-September.
I think you have a wording error
"The area of the Arctic Sea THAT IS NOT COVERED IN ICE HAS REACHED THE LOWEST POINT EVER" implies ice coverage is at an all time high. I believe you want to remove the "not" that sits before "covered in ice".