Rows of worshippers, some with their faces raised toward the sky, others with...

CNN Climate 2 months ago

Rows of worshippers, some with their faces raised toward the sky, others with their heads bowed, prayed for rain at a mosque in Tehran earlier this month. Theirs is an increasingly desperate plea. The city is grappling with a water crisis so severe the Iranian president has suggested people may need to evacuate. The weeks tick by, still the rains don't arrive. There are fears water may run out completely in this vast, bustling city, whose metropolitan area is home to around 15 million people. Iran, a mostly semi-arid country, is no stranger to water shortages, but rarely have they affected Tehran, home to most of the country's rich and powerful. The roots of Iran's water woes echo those in many other parts of the world: decades of over-extraction; aging, leaky infrastructure; a proliferation of dams erected across rivers; mismanagement; accusations of corruption. Through it all runs the thread of climate change, driving hotter, drier weather, meaning year after year, dried-out reservoirs are not replenished. Tap the link in bio for more.

layersDaily Sustainability Digest

Published about 6 hours ago



Supply chains and valuation trends are reshaping sustainable construction. Mineral sourcing has become a critical determinant of embodied carbon, directly influencing the whole life carbon profile of buildings. As more than 100 countries engage in redefining mining and processing frameworks, the carbon footprint of construction materials such as steel, aluminium and copper will dictate future procurement strategies. Teams evaluating cost plans must now conduct whole life carbon assessments integrating life cycle cost and lifecycle assessment data to quantify environmental sustainability in construction.

This signals a shift toward circular economy practices, where low embodied carbon materials and transparent environmental product declarations (EPDs) govern material selection. The financing of renewable energy infrastructure across the UK and Europe demonstrates how cheap, clean power underpins sustainable building design and low carbon design. A £400m injection into solar and wind assets enhances the viability of net zero carbon buildings and electrified manufacturing sites, advancing low carbon construction materials and supporting BREEAM and BREEAM v7 certification pathways.

These developments strengthen the link between operational performance, resource efficiency in construction, and lower life cycle costs for energy-efficient buildings. Investors are embedding whole life carbon metrics into valuation models as part of decarbonising the built environment. Green construction premiums and brown discounts now reflect lifecycle risk, as market signals confirm that sustainable building practices and eco-design for buildings are shaping long-term asset performance.

The professional imperative is clear: achieve net zero whole life carbon through circular construction strategies, carbon neutral construction methods and end-of-life reuse in construction, ensuring the built environment aligns with global sustainability and green infrastructure goals.

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