Water is inherently short in supply in this arid nation. The difference is this...

CNN Climate 4 months ago

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. Tap the link in bio for more. 📸 : Atta Kenare/AFP/Getty Images

layersDaily Sustainability Digest

Published about 6 hours ago



Europe’s acceleration of low carbon steel investment marks a decisive step toward decarbonising the built environment and controlling embodied carbon in new infrastructure. Germany’s strong state aid signals that low embodied carbon materials will soon define procurement preferences and affect both whole life carbon assessment and life cycle cost analysis in major developments. Materials with verified certifications for net zero whole life carbon will gain priority as sustainable construction frameworks evolve, reflecting client demand for transparent supply chains and lower carbon footprint of construction.

Falling energy prices are strengthening the business case for energy-efficient buildings and low carbon design. Large-scale battery storage achieving competitive costs outside China and the US places renewable generation firmly within life cycle thinking in construction. The UK approval of the BWRX‑300 small modular reactor provides regulatory assurance for firm power needed to support eco-friendly construction operations, from cement kilns to fabrication plants. A more reliable grid will accelerate net zero carbon buildings and the transition to carbon neutral construction.

At project scale, the expanding circular economy in construction is reinforcing resource efficiency in construction. London’s new glass recycling facility will feed green building materials into façade and insulation supply chains, strengthening sustainable material specification for eco-design for buildings. Biochar’s role in carbon footprint reduction remains promising, though dependent on circular construction strategies and mature quality assurance to guarantee durable results. Genuine environmental sustainability in construction relies on traceable, scalable systems that clarify the environmental impact of construction.

Programmes targeting industrial efficiency continue to deliver the cheapest form of decarbonisation. Proven operational measures are expected to cut emissions by millions of tonnes and reduce costs, encouraging the sector to address whole life carbon at every stage of the building lifecycle performance. Investors and clients now see sustainable building practices and low carbon construction materials not as innovation but as standard risk management. Strengthened oversight of waste streams underlines that circular economy ambitions require clean closure at the system’s end, ensuring claims of sustainable building design and green construction remain credible.

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