A number of foreign nations and international organizations have begun to cooperate economically with Tibet, implementing some international aid programmers. The UNDP started to provide US$4 million towards the construction of the Yangbajain geothermal power plant in 1981. In 1989, UNWFP provided financial aid for comprehensive agricultural development projects geared to drought resistance and prevention and improving irrigation conditions in the four counties of the Lhasa River Valley, all of which has already been used. The UNICEF provided US$3.215 million in aid for 10 projects including health centers for women and children. In 1995 the UNDP decided to provide US$822,000 in aid to four counties, Nyalam, Tingri, Dingye and Gyirong, in the Qomolangma Nature Reserve in western Tibet for projects involving agriculture, housing, school, wind power and household handicraft production.