Chemical pollution of the air and water is extensive, but resources to combat pollution are scarce: a 1996 government study estimated that US $350 million were needed to combat pollution, but only US $7 million were allocated for this purpose. According to the study, air pollution affects 179 areas of the country, soil pollution affects 54 areas, and water pollution affects 32. Hungary is also one of 50 nations that lead the world in industrial carbon dioxide emissions, with a 1992 total of 59.9 million metric tons, a per capita level of 5.72 metric tons. Hungary has 6 cu km of renewable water resources, with 70% used for industrial purposes and 5% used for farming activity. The nation's cities produce about 1.9 million tons of solid waste. Hungary's principal environmental agency is the National Council for Environment and Nature Conservation, under the auspices of the Council of Ministers. In 1992, the United Nations reported the extinction of 93 species of Hungary's plants and animals. As of 2001, 8 of Hungary's mammal species and 10 of its bird species were endangered. Eight plant species were also endangered. Endangered species included the longicorn, the alcon large blue butterfly, the dusky large blue butterfly, and the Mediterranean mouflon.