By Frank Thomas
In the 1970s, permafrost Arctic sea ice at its lowest point covered about half of the Arctic ocean surface. But it has been on an alarming declining trend over recent decades, now covering at its lowest point 25% of the Arctic ocean surface – or half of its previous area and thickness.
This rapid warming of the Arctic region creates a near term world threat of a major sub-sea methane release that could intensify global warming to irreversible levels along with high fossil fuel C02 emissions.
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