Air pollution (from metallurgical plant emissions) and deforestation are inland environmental problems. In 1996 industrial carbon dioxide emissions totaled 17.5 million metric tons. Coastal water systems have been damaged by industrial and domestic waste. All of Croatia's urban dwellers have access to safe drinking water. Environmental management is becoming more decentralized, thereby empowering city and municipal administrations to determine environmental policy. Croatia's 195 protected areas cover 421,000 ha, or 7.4% of the country's natural areas. Forest and woodland accounted for 15% of Croatia's land use in 1996. As of 2001, there were 10 mammal species and 6 bird species that were considered threatened. Endangered species include the Atlantic sturgeon, slender-billed curlew, and the Mediterranean monk seal.