for scene 28 of the video " Floods and Ice Age - Part 2" by Rolf Witzsche
here for a larger image
It may become economically advantageous at a point
California's water infrastructure is a gigantic complex system that promises to become increasingly costly to maintain, so much so that it may become economically advantageous at a point to simply put the critical agriculture afloat onto the sea in large scale automated indoors facilities, and this long before it becomes an existentially necessity to do so.
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Published by Cygni Communications Ltd.
North Vancouver, BC, Canada - (C) in public domain - producer Rolf A. F.