Comments by "robheusd" (@robheusd) on "PBS Eons" channel.

  1. At some point there would arise the need to desalinate water and use less water consuming ways for agriculture - using the power of the sun we can desalinate as much water as we want, although it would raise the price of drinking water. so we need to use the water more economically and less wastefull and prevent water polution.
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  2. Human society as we know it today (with people living in cities and agricultural technology and domesticating animals and the use of science and technology) would perhaps not even exist without this climatic change. Sp maybe the current climate change can be a driving force for new innovations and technology to deal with a more rapid change in climate, like finding ways to produce food with less water, regreen deserts, and to change from fossile fuels to renewables and nuclear.
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  3.  @ohlangeni  Isn't afro=asiatic a proto language construction invented by linguistics, constructed as the ancestor language of semtic and cushitic languages - similar to how they constructed the proto indo-european language?
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  4. What is perhaps the most interesting aspect of this is that this event of dyring up of the Sahara and other regions, which forced people to migrate to places with enough water, might have been the driving force for the evolution of human society which then had to live near permanent and plentifull sources of water (rivers and lakes), and had to adopt to a life style of small populations living far from each other and a nomadic existence of gather hunterers into smaller areas and had to invent ways of producing enough food on smaller areas, causing the invention of agricultural technology and building technology, so creating cities and organizing society to deal with large groups of people living close together, and the advent of different jobs as the agricultural techniques allowed for surplus of food with fewer people working to grow food. Human society would have been quite different if this climatic change had not happened, we would perhaps still have lived as nomadic tribes.
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