For years, the fight against climate change has been symbolized by one number: 1.5.
Ever since countries agreed in 2015 to an ambition of restricting global warming to 1.5 degrees Celsius above pre-industrial levels, the number has become synonymous with staving off catastrophic climate change.
But what if the battle to keep global warming from overshooting this limit has already been lost?
Some prominent scientists argue it has and it's irresponsible not to sugarcoat the truth. For others, that view is not only wrong, but even "dangerous."
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In Renfrewshire, plans for a £14 million affordable housing development led by Sanctuary Scotland typify how sustainable building design is being integrated into social infrastructure. The focus on energy-efficient systems and low-impact construction indicates progress toward whole life carbon reduction within community housing. Although still at the design stage, the project reflects growing emphasis on eco-design for buildings, where life cycle cost and building lifecycle performance are evaluated together to balance affordability and climate responsibility. Such developments form a blueprint for sustainable urban development that aligns social value with measurable environmental outcomes.
Across Europe, regulation continues to embed life cycle thinking in construction through stronger supply chain accountability. The European Union’s deforestation regulation reinforces the principle that circular economy in construction must go beyond design to encompass material sourcing. Construction firms handling timber and other renewable building materials face new verification demands that complement environmental product declarations (EPDs) and whole life carbon data. By placing compliance within the framework of circular construction strategies, the EU is advancing a market where environmental impact of construction is assessed throughout production and delivery chains.
Research continues to highlight how clean energy integration supports decarbonising the built environment. Findings from University College London show that wind generation has significantly reduced national energy expenditure, reinforcing the link between low carbon design and long-term life cycle cost savings. The evidence supports the case for green building materials and energy-efficient buildings, confirming that carbon footprint reduction need not compromise economic viability. For developers committed to sustainable design, aligning construction with renewable energy sources remains central to the delivery of net zero whole life carbon targets.
Mounting environmental pressures are amplifying calls for resource efficiency in construction. Rising levels of water contamination highlight the urgency for eco-friendly construction strategies that incorporate effective runoff management and low embodied carbon materials. At the same time, the growing energy demands of data centres underscore the necessity of carbon neutral construction and resilient green infrastructure capable of supporting a digital yet sustainable economy. The direction of travel for the sector is unambiguous: sustainable construction must integrate circular economy principles, ensure end-of-life reuse in construction, and prioritise BREEAM v7 or equivalent standards to future-proof the built environment against accelerating climate risks.
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