The largest dam removal project in US history is finally complete, after crews last week demolished the last of the four dams on the Klamath River.
It’s a significant win for tribal nations on the Oregon-California border who for decades have fought to restore the river back to its natural state.
The removal of the four hydroelectric dams — Iron Gate Dam, Copco Dams 1 and 2, and JC Boyle Dam — allows the region’s iconic salmon population to swim freely along the Klamath River and its tributaries, which the species have not been able to do for over a century since the dams were built.
The Yurok Tribe in Northern California are known as the "salmon people." To them, the salmon are sacred species that are central to their culture, diet and ceremonies. As the story goes, the spirit that created the salmon also created humans and without the fish, they would cease to exist.
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📸: Carlos Avila Gonzalez/Hearst Newspapers/San Francisco Chronicle/Getty Images
In Oslo, the retrofit of a 1930s landmark using autoclaved aerated concrete demonstrates how low embodied carbon materials can deliver both preservation and performance, reinforcing circular economy in construction principles while maintaining heritage value. Ytong’s sustainable retrofit in Oslo exemplifies this evolution in practice.
Manchester’s commitment to circular heat networks marks a strategic pivot toward low carbon design at an urban scale, echoing broader ambitions for net zero whole life carbon and carbon neutral construction. This aligns with broader national initiatives such as those described in Manchester’s pioneering city‑wide energy systems.
Innovation in AI‑driven project modelling is accelerating sustainable building design through more precise embodied carbon evaluation and lifecycle assessment, improving the accuracy of whole life carbon reporting under tightening UK and European disclosure requirements. The regulatory landscape is intensifying as policymakers address the environmental impact of construction with updated guidance covering recyclability, fire performance, and environmental product declarations (EPDs), as evidenced by new fire‑rated junction guidance supporting construction safety.
Major clients adopting sustainable building practices on flagship regeneration projects such as Battersea Power Station illustrate how sustainable material specification and eco‑design for buildings now define prestige development. The convergence of green construction, low‑impact construction techniques, and sustainable urban development underlines a maturing circular economy where energy‑efficient buildings and low carbon building methods deliver resilience to climate‑driven stresses. The industry’s trajectory confirms that sustainable design and decarbonising the built environment are no longer aspirational but essential criteria for long‑term building lifecycle performance and genuine net zero carbon progress.
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