28 MAY 2013 by ideonexus
Geological and Social Impact of the Himalayas
When you look at the planet from low orbit, the impact of the Himalayas on Earth’s climate seems obvious. It creates the rain shadow to beat all rain shadows, standing athwart the latitude of the trade winds and squeezing all the rain out of them before they head southwest, thus supplying eight of the Earth’s mightiest rivers, but also parching not only the Gobi to the immediate north, but also everything to the southwest, including Pakistan and Iran, Mesopotamia, Saudi Arabia, even North...They scorch the Earth and scorch the societies that live there. (Note: I disagree, this is overgeneralizing and ignores social ills of societies in more temperate climates)
28 JAN 2012 by ideonexus
Deserts Follow Where Man Goes
Very old and wide-spread is the opinion that forests have an important impact on rainfall. ... If forests enhance the amount and frequency of precipitation simply by being there, deforestation as part of agricultural expansion everywhere, must necessarily result in less rainfall and more frequent droughts. This view is most poignantly expressed by the saying: Man walks the earth and desert follows his steps! ... It is not surprising that under such circumstances the issue of a link between fo...Eduard Brückner recognizes the importance of forests in maintaining a healthy climate in the late 1800s.
09 SEP 2011 by ideonexus
Ancient Observation of the Changing Landscape
So it is clear, since there will be no end to time and the world is eternal, that neither the Tanais nor the Nile has always been flowing, but that the region whence they flow was once dry; for their action has an end, but time does not. And this will be equally true of all other rivers. But if rivers come into existence and perish and the same parts of the earth were not always moist, the sea must needs change correspondingly. And if the sea is always advancing in one place and receding in a...From Aristotle's "Meteorology". He sees that rivers dry and flow and move.