Water is inherently short in supply in this arid nation. The difference is this crisis is hitting the capital, said Kaveh Madani, director of the United Nations University Institute for Water, Environment and Health. Tehran, home to around 10 million people, could run out of water altogether if consumption levels are not reduced, experts fear.
The roots of the crisis lie in a tangle of factors including what engineers describe as decades of poor water management and an increasing imbalance between supply and demand.
It's all compounded by climate change.
Iran is experiencing one of its worst droughts on record, and its fifth consecutive year of drought. The country is also baking under brutal heat. Temperatures spiked above 122 degrees Fahrenheit in parts of the country this month, according to climatologist and weather historian Maximiliano Herrera. "Iran seems almost perennially in a record-heat status," he told CNN.
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📸 : Atta Kenare/AFP/Getty Images
Climate damage and material waste are reshaping sustainable construction more forcefully than certification culture. The loss of 38 homes to wildfire in the Midlands has exposed the need for sustainable building design that treats fire resilience, flood resistance and passive survivability as core requirements. Shropshire fire crews’ warnings over escalating wildfire and flooding extremes underline a decisive shift for green construction: buildings must be designed for volatility, not historic weather patterns.
Large-scale migration would intensify pressure on housing delivery, infrastructure finance, sustainable urban development and supply chains for low carbon construction materials. Adaptation is now a construction pipeline issue, requiring life cycle thinking in construction, robust building lifecycle performance and a clearer link between resilience, life cycle cost and whole life carbon.
Materials innovation is moving towards the circular economy in construction. Plans for a wind turbine recycling facility at the Port of Inverness show renewable infrastructure confronting end-of-life reuse in construction. The sector’s claims on circular economy performance will increasingly depend on measurable circular construction strategies, resource efficiency in construction and sustainable material specification, not marketing language. Embodied carbon, embodied carbon in materials and the carbon footprint of construction must be assessed alongside operational energy if net zero carbon buildings and net zero whole life carbon targets are to be credible.
Research converting waste plastics, packaging and old CDs into polymer networks that harvest moisture from air points to future green building products and construction-adjacent materials for water-stressed regions. The science remains early stage, yet it supports the wider move towards low embodied carbon materials, renewable building materials where appropriate, and practical eco-design for buildings.
Laboratory findings showing duct tape outperforming sandbags as a flood defence reinforce a key lesson for sustainable architecture: resilience can come from inexpensive, rapidly deployable measures as well as major green infrastructure. The direction is clear. Sustainable construction is expanding beyond carbon accounting into whole life carbon assessment, lifecycle assessment, low carbon design, circular economy principles and climate practicality. The strongest projects will combine energy-efficient buildings, lower embodied carbon, carbon footprint reduction and durable adaptation to a harsher world.
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