I've heard that the Sahara is growing. Is it happening in other places? What are the causes of desert-ification? (is that the correct pronounciation?) What can be done to stop it? Do you have a link for more information?
Yea, most desertifications were caused by a variety of reasons: natural causes such as climate-change, and human causes such as slash and burn, tree-cutting, soil erosion, and more. There is a site having details of it: http://www.unccd.int/ ,the UN convention to stop desertification.
The land taken for agriculture is used for pastural and arable farming, looking at my meat its all sourced from western europe, my fruit however comes from all kinds of cool places. Much of the damage in Africa is now done it was at its worst when communism was rife in sub-Saharan Africa and there was no control whatsoever over the destruction of forest. This contributed hugely to Ethiopias problems, its capacity to sustain a population has been hugely damaged. I believe the main area of concern is now the Amazon although that is part of a bigger problem.
free range farming of animals would not cuase the problem, its when they over graze a tract of land or pen farm animals that the issue is there. Regular farming is actually more damaging when done wrong such as total depletion of minerals in the soil. People can easily over farm land and along with other cuases we could have the great american dust bowl again. There is no real single cuase to address other than being unresponsible in any activity. So trying to terminate one action is not going to do it. Switch to free range farming, crop rotation, selective harvest and replant, planned community/enviroment construction, force larg corporations to mandate carpools, minimum 3 person per car to that job (i.e. Boeing, Ford ect several hundred employees) grey water collection and utilization, conserve, composting of waste materials, recycle. You all know the game just getting the game to be accepted or forced is the problem.
Funny you guys worry about desertification but in AZ we worry about de-desertifivation destroying our beutiful mohave