disasters Iran experiences periodic droughts, floods, dust storms, sandstorms and earthquakes along western border and in the northeast. Soil erosion Iran ranked worst in the world for soil erosion in 2011. Waste An estimated 50,000 tons of trash is produced in the country every day of which something between 70 and 80 percent is disposed of hygienically but the rest is not. Iran produces over 8 million tons of hazardous waste annually (2016). Water Industrial and urban wastewater runoff has contaminated rivers, coastal and underground waters. Water scarcity See also Clean Air Law of Iran Automotive industry in Iran Department of Environment (Iran) Economy of Iran Energy in Iran Environmental issues in Tehran Geography of Iran International rankings of Iran Iranian Economic Reform Plan Wildlife of Iran References External links Department of Environment – Islamic Republic of Iran (2003) US Dept. of Energy – Environment Overview for Iran Iran: Environment and Nature First Iranian site covering environmental news Iran Climate change in Iran