"The primary reasons for desertification are overgrazing, over-cultivation, increased fire frequency, water impoundment, deforestation, overdrafting of groundwater, increased soil salinity, and global climate change."Notice the first few listed - one could almost consider them an order of importance.Overgrazing, and over-cultivation.Somehow, I think more will be accomplished focusing on countering those two primary causes, as opposed to leaping on the climate change bandwagon. That approach reeks of the 'blame someone else and never change my ways' mentality.