水不足
The Water crisis in Iran refers to the problems regarding water scarcity in Iran. Water scarcity can be a result of two mechanisms: physical (absolute) water scarcity and economic water scarcity, where physical water scarcity is a result of inadequate natural water resources to supply a region's demand, and economic water scarcity is a result of poor management of the sufficient available water resources. Iran's main concerns regarding the water crisis include high climatic variability, poor distribution of water, and prioritization of economic development.