Australia’s iconic Great Barrier Reef, famed for its stunning colors and biodiversity, suffered its biggest ever decline last year after a marine heatwave bleached vast swathes of hard coral, a new report has found.
The reef had its worst summer on record in 2024 when the world underwent a rare global mass coral bleaching event impacting dozens of countries. Surging water temperatures combined with an El Niño weather pattern caused stressed corals to expel algae and lose their color.
An official analysis now shows the reef lost between a quarter and a third of its hard coral cover across three main regions, according to the Australian Institute of Marine Science. In some areas, particularly hard-hit reefs lost up to 70% of their living coral.
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📽️: CNN
Material supply chains showed renewed complexity as Europe delayed enforcement of deforestation rules, affecting traceable sourcing of mass-timber and the embodied carbon in materials that underpin sustainable building practices. The deferral reinforces the need for lifecycle assessment and end-of-life reuse in construction, ensuring renewable building materials meet the standards of environmental product declarations (EPDs). Clients now prioritise deforestation-free, rights-respecting, low embodied carbon materials supported by circular economy in construction frameworks and robust whole life carbon assessments.
Rising energy prices across North America increase attention on energy-efficient buildings, deep retrofit strategies and life cycle cost optimisation. Developers are integrating eco-design for buildings that enhance operational performance while lowering the carbon footprint of construction. Water resilience is shaping sustainable building design in the UK, with drought prediction and reuse systems becoming part of life cycle thinking in construction and sustainable urban development.
The transition demands resource efficiency in construction and carbon neutral construction models that directly address the environmental impact of construction. Developers and contractors must commit to building lifecycle performance monitoring, circular construction strategies and sustainable material specification aligned with BREEAM v7 and similar frameworks. Environmental sustainability in construction now depends on design teams treating embodied carbon and whole life carbon as defining metrics for low-impact construction and durable, eco-friendly assets.
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