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Post by coolplanet on May 31, 2013 21:59:40 GMT -5
Published on Mar 4, 2013
"Desertification is a fancy word for land that is turning to desert," begins Allan Savory in this quietly powerful talk. And terrifyingly, it's happening to about two-thirds of the world's grasslands, accelerating climate change and causing traditional grazing societies to descend into social chaos. Savory has devoted his life to stopping it. He now believes -- and his work so far shows -- that a surprising factor can protect grasslands and even reclaim degraded land that was once desert.
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Post by lamudbug on Jun 1, 2013 14:08:31 GMT -5
A typical academic.
He sees only the part he was trained to see.
Those blinders educated onto him caused him to not notice (as horses with blinders do not notice things off to the side)
The effect of humans.
Millions of families tearing branches off trees to cook three or more meals each day, kill the trees.
He does not understand the importance of trees inthe cycle.
They kill all the trees and move on. Desertification
They defecate and pollute the creeks and streams and move on.
Someone should give such self important jerks a copy of "Dune" and learn what the fictional Kynes spoke so clearly.
You either plan to, and deliberately, make your world better, or it gets worse due to the degradation caused by those who do not care.
I get so tired of arguing with academics who see only with the blinders that were educated onto them.
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Post by coolplanet on Jun 3, 2013 14:55:03 GMT -5
A typical academic. He sees only the part he was trained to see. Those blinders educated onto him caused him to not notice (as horses with blinders do not notice things off to the side) The effect of humans. Millions of families tearing branches off trees to cook three or more meals each day, kill the trees. He does not understand the importance of trees inthe cycle. They kill all the trees and move on. DesertificationThey defecate and pollute the creeks and streams and move on. Someone should give such self important jerks a copy of "Dune" and learn what the fictional Kynes spoke so clearly. You either plan to, and deliberately, make your world better, or it gets worse due to the degradation caused by those who do not care. I get so tired of arguing with academics who see only with the blinders that were educated onto them. Reindeer Slow Global Warming According to Professor Lauri Oksanen of the University of Turku, grazing by reindeer keep arctic vegetation in check, thus reducing the solar heat absorption that leads to a self-reinforcing cycle of climate change. Yle | June 3, 2013 Snow cover and mostly barren tundra reflect large portions of the sun's rays. When darker shrubs and trees spring up in arctic areas they absorb more energy, heating up their surroundings and the earth's atmosphere. Researchers in Finland have now carried out a comparison between an area in Norway where reindeer are not allowed to graze in the summer, and a similar area in Finland where grazing reindeer have kept shrubs and tree from growing. They have found that the heat radiated by the overgrown area in Norway is at a much higher level. "The heat difference between what happens there and in the Finnish area during three spring months, March, April and May, would be enough to melt a cubic kilometre of ice. That is no small matter,” explains Professor Lauri Oksanen. Oksanen points out that snow cover best reflects the rays of the sun back into space. Dense forestlands reflect the least. The light-coloured lichens, also known as reindeer moss, that are an important part of reindeer diet, are also much more reflective than shrubs or trees. So, too many reindeer over-grazing on lichens could help add to, rather than help reduce climate change. One major problem that Professor Oksanen is concerned about in the north is the improvements to forest growth brought about by land management, such as the draining of wetlands. "If wetlands and poorly growing forests could be brought back so that the forests were left sparse and the wetlands returned to a natural state, it would significantly cool the atmosphere," Lauri Oksanen says. |
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