Iran’s Environment: Greater Threat than Foreign Foes
October 28, 2013 | 10:30am
David Michel
Iran now ranks 114of 132 countries evaluated on 22 environmental indicators, including water resources, air pollution, biodiversity and climate change, according to the 2012 Environmental Performance Index compiled by Yale and Columbia Universities.
Water
Iran’s fresh water supplies are now under unsustainable strains. Ninety percent of the country—which is slightly smaller than Alaska—is arid or semi-arid, and an estimated two-thirds of its rainfall evaporates before it can replenish rivers. As a result, Iran provides more than half of its water needs by drawing from underground aquifers, but public usage is rapidly draining the subterranean reservoirs. At current rates of overuse, twelve of Iran’s thirty-one provinces will exhaust their groundwater reserves within the next 50 years.
Iran’s economic policies have exacerbated the problem. Groundwater is free to well owners and, due to government subsidies, users pay a fraction of the actual energy costs for pumping water to the surface. Iran annually pumps 4 billion cubic meters of groundwater that nature does not replenish.
Agriculture Imperiled
Iran’s water problems now risk undermining the national economy. The agricultural sector produces 10 percent of Iran’s GDP and employs a quarter of the labor force. It also supports national food security, a top priority since the 1979 revolution was carried out in the name of “the oppressed.” Indeed, Tehran subsidizes producers and consumers alike in a dual strategy to promote self-sufficiency in staple crops by bolstering both supply and demand.
Tough Choices
Competition over scarce water has already fueled conflict both within Iran and with its neighbors. In early 2013, farmers outside Isfahan destroyed a pump that diverted water from a local river to the city of Yazd some 185 miles away. Outraged at the loss of water, protestors refused to allow authorities to repair the pump, sparking week-long demonstrations, armed clashes with police, and water shortages and rationing in Yazd. In 2011, Iranian border guards exchanged fire with Afghan forces after crossing into Afghanistan to release water from an 18-mile irrigation canal from the Helmand River. And in the 1980s, the longest modern Middle East war was ignited by rival claims of control over the strategic Shatt-al Arab waterway between Iran and Iraq.
The escalating pressures on Iran’s water resources raise difficult choices for competing consumers. In the Karkheh Basin, water managers have to decide what to do about lower river flows—whether to retain water in the Karkheh Dam to build reserves for hydropower or whether to release water downstream for irrigation to a region considered to be Iran’s food basket.
Pollution
Iran faces other serious environmental risks. According to the World Health Organization, Iran has three of the world’s five most polluted cities—Ahwaz, Kermanshah, and Sanandaj—that are choked by levels of air pollution four to seven times higher than WHO’s maximum guidelines. Because of its poor air quality nationwide, Iran ranked 86 out of 91 countries surveyed. In Tehran (see below) alone, contaminants in air pollution cause more than 5,500 deaths each year from cardiovascular and respiratory diseases.
The Toll
The damage – from water stress, desertification and pollution--could impose debilitating burdens long-term. The annual cost of Iran’s environmental degradation already amounts to a whopping 5 percent to 10 percent of GDP, according to the World Bank. In contrast, tough U.S. and international sanctions shrunk Iran’s GDP by some 1.4 percent in 2012, according to the U.S. Government Accountability Office. Over time, valuable resources will be further depleted, productivity diminished, and public health damaged.
Mismanagement has contributed to Iran’s environmental problems. Its cities lose one-third of their water supplies in leaky pipes. Irrigation is also highly inefficient; more than half of Iran’s renewable water used in agriculture is lost. Surmounting Iran’s environmental challenges will require serious reorientation of policies and resources. The cost of new technologies, conservation practices and other measures to meet projected water needs in 2050 could top $3 billion a year, experts say.
Iran has recently taken important steps in the right direction. Subsidy reforms initiated in 2010 will gradually require consumers to absorb the actual costs of water supplies, enhancing the incentives to be efficient. Revenues saved from cutting back energy subsidies are intended to support initiatives to reduce greenhouse gas emissions and air pollution. But the subsidy reforms stalled after phase one. They were also not designed or intended to deal with environmental challenges. Iran’s looming environmental crisis will require a comprehensive green revolution in national policy-making.
courtesy : David Michel
David Michel is director of the Environmental Security Program at the Stimson Center, a non-partisan think tank in Washington D.C.
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Photo credits:
Maranjab desert in Iran by by Siamaksabet (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia