Inter Press Service: Climate change aggravates soil degradation, but sustainable use of land resources can, in turn, mitigate global warming, according to participants at the United Nations conference on desertification in the Argentine capital. Ahead of the Climate Summit to be held in Copenhagen in December, representatives of 193 governments are meeting this week in Buenos Aires for the Ninth Session of the Conference of the Parties (COP 9) to the U.N. Convention to Combat Desertification …