Somalia is a semi-arid country with about 1.64% arable land. The first local environmental organizations were Ecoterra Somalia and the Somali Ecological Society, both of which helped promote awareness about ecological concerns and mobilized environmental programs in all governmental sectors as well as in civil society. From 1971 onward, a massive tree-planting campaign on a nationwide scale was introduced by the Siad Barre government to halt the advance of thousands of acres of wind-driven sand dunes that threatened to engulf towns, roads and farm land. By 1988, 265 hectares of a projected 336 hectares had been treated, with 39 range reserve sites and 36 forestry plantation sites established. In 1986, the Wildlife Rescue, Research and Monitoring Centre was established by Ecoterra International, with the goal of sensitizing the public to ecological issues. This educational effort led in 1989 to the so-called "Somalia proposal" and a decision by the Somali government to adhere to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which established for the first time a worldwide ban on the trade of elephant ivory.