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| Fig. 1 Lake & River System of Antarctica |
It is not terrorism or disease which the media incessantly talks about (Obola: Art Thou Dying Properly?).
Nor is it anything that causes us to have the most expensive spy system in the world (Why The Military Can't Defend Against The Invasion) or the most expensive military in the world (American Feudalism - 6).
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| Fig. 2Location of Lake Vostok |
That short-run danger (Fig. 1) is lurking in the shadows under the ice sheets of Antarctica and Greenland.
Under Antarctica is a lake and river system that could be the size of the largest river basin, the Amazon, while its largest lake, Lake Vostok, is under the Totten Glacier Catchment (compare Fig. 1, Fig. 2, and Fig. 3, and see Video 1 below @ 3.30).
According to the two videos below, large lake and river systems are under both of those ice sheets.
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| Fig. 3Totten Glacier Location |
It is only one of about 400 Antarctic subglacial lakes we know of (see Lake Vostok).
A large concern is that something is holding back the water of the lakes.
Should the ice dam or other impediment give way, the water could be released in a cataclysmic surge as has been the case in geologically recent times (The Surge: A Forgotten Aspect of Sea Level Rise).
Past surges, such as "Pulse 1C", have caused a 1m / 3 ft. SLR "in a few years or less" (ibid).
We know the calamity to civilization such a surge would cause (Weekend Rebel Science Excursion - 44).
Video 1: Amazon-sized river system under Antarctic ice sheet ...
Video 2: Lake / river systems under Greenland ice sheet ...