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A comment on NASA Data Shows Toxic Air Threat Choking Indian Subcontinent. Parent comment

Re:NASA Data Shows Toxic Air Threat Choking Indian Subcontinent by soundwave106 on Thursday July 07, 2016 @02:38PM (#12051256)
From what I see, there's a pretty good correlation between the population density map (https://www.britannica.com/place/Canada/images-videos/Popula...) and the portion of Canada at least sporadically covered by permafrost. (http://www.enr.gov.nt.ca/state-environment/13-permafrost)

In addition to the rather obvious climate this implies (eg, rather cold), from what I understand, building anything on permafrost is very challenging.

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Re:NASA Data Shows Toxic Air Threat Choking Indian Subcontinent by soperj on Thursday July 07, 2016 @07:57PM (#12052823)
"sporadically covered by permafrost" - I think you're confused as to the permanency of permafrost.
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