Why Tehran Is Running Out of Water
5 days ago
- #Iran
- #water crisis
- #climate change
- Iran experienced an exceptional heat wave in summer 2025, with temperatures nearing 50°C (122°F), leading to public office closures.
- Tehran's water reservoirs, like Amir Kabir Dam, dropped to 8% capacity, risking a 'Day Zero' scenario where taps could run dry.
- Drought disrupted urban systems, shrinking rivers, reducing hydropower, and prompting strict water-saving measures in Tehran.
- Officials warned of potential evacuation if water supplies don't recover, with President Pezeshkian suggesting relocating the capital.
- Prolonged precipitation deficits over five years, especially in 2024-25, worsened by extreme heat, amplified hydrological stress.
- Satellite data showed a north-south precipitation dipole in Iran, with reduced rainfall in central and southern regions affecting water supplies.
- Climate change projections indicate declining precipitation in the Mediterranean basin and Mesopotamia, impacting Tehran's water sources.
- Poleward displacement of storm tracks due to climate change creates a precipitation dipole, reducing rainfall around Tehran.
- IPCC models suggest future dry conditions in Tehran may resemble recent observations, especially in spring.
- Tehran's transitional climate zone complicates precipitation projections, requiring more research on winter rainfall variability.
- Extreme heat and drought events are expected to become more frequent, threatening public health, energy, and food supply systems.
- Urgent global emissions mitigation and local adaptation are needed to address escalating climate risks in Tehran.