Harmful bleaching of the world's coral has grown to include 84% of the ocean's reefs in the most intense event of its kind in recorded history, the International Coral Reef Initiative announced Wednesday.
It's the fourth global bleaching event since 1998, and has now surpassed bleaching from 2014-17 that hit some two-thirds of reefs, said the ICRI, a mix of more than 100 governments, non-governmental organizations and others. And it's not clear when the current crisis, which began in 2023 and is blamed on warming oceans, will end.
"We may never see the heat stress that causes bleaching dropping below the threshold that triggers a global event," said Mark Eakin, corresponding secretary for the International Coral Reef Society and retired coral monitoring chief for the US National Oceanic and Atmospheric Administration.
"We're looking at something that's completely changing the face of our planet and the ability of our oceans to sustain lives and livelihoods," Eakin said.
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📸: LM Otero/AP/File
Low‑carbon construction materials that once featured only in research pilots are now being deployed across major European projects, signalling a tangible shift towards sustainable building design and environmental sustainability in construction. The European Patent Office refurbishment in Vienna integrates Holcim’s ECOPact concrete and ECOCycle® technologies to minimise embodied carbon while demonstrating architectural excellence. The project exemplifies the practical application of whole life carbon assessment and lifecycle assessment, setting a benchmark for net zero carbon buildings and low carbon design across Europe.
In the UK, construction supply chains are increasingly defined by circular economy principles and resource efficiency in construction. Record renewable energy generation is enabling low carbon building sites powered by cleaner electricity, and the emergence of electric maintenance fleets underscores the shift to carbon neutral construction. The economic rationale for decarbonising the built environment is reinforced by a recent study linking reduced emissions to a measurable “clean air dividend” that enhances life cycle cost outcomes for both public health and infrastructure investment.
Financial institutions are embedding climate risk into portfolio management, with pension funds pressing developers to disclose embodied carbon in materials and adopt environmental product declarations (EPDs). This growing demand for transparency is driving sustainable building practices aligned with BREEAM and emerging criteria under BREEAM V7. The Duchy of Cornwall’s move to verify regenerative farming practices points to tighter integration between land management and construction supply chains, connecting healthy soils with lower embodied carbon concrete and renewable building materials that support a circular economy in construction.
The trend is decisive: sustainability has evolved from a narrative into an operational standard defining net zero whole life carbon strategies, green construction performance, and end‑of‑life reuse in construction. Replicating proven models such as Vienna’s will determine how rapidly the built environment achieves coherent, large‑scale transformation toward eco‑friendly construction and measurable carbon footprint reduction.
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