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
The sustainable construction agenda is shifting from headline innovation to measurable delivery across buildings, infrastructure and finance. The World Green Building Council’s Advancing Net Zero work, set against IRENA’s warning that electrification and renewables remain too slow, reinforces the need for net zero carbon buildings backed by cleaner grids, heat electrification and stable policy.
Certification alone will not deliver net zero whole life carbon. The sector needs whole life carbon assessment, lifecycle assessment and life cycle thinking in construction to guide sustainable building design, low carbon design and credible decarbonising the built environment.
The UK debate over the Boiler Upgrade Scheme is therefore material to environmental sustainability in construction. Any reduction in support for heat pumps would slow one of the clearest routes to cutting operational emissions in existing homes. Energy-efficient buildings require long-term policy certainty, robust life cycle cost analysis and practical sustainable building practices, not fragmented incentives. Green construction must be judged by building lifecycle performance, carbon footprint reduction and the carbon footprint of construction, including embodied carbon, embodied carbon in materials and the specification of low embodied carbon materials.
Climate adaptation is now becoming core construction policy. A £1.6m programme to install flood-resilience measures in 100 East Midlands homes after Storms Babet and Henk shows resilience retrofit moving into mainstream housing delivery. The River Trent restoration analysis, indicating £10bn in economic gains and more than £7 of benefit for every £1 invested, strengthens the case for green infrastructure, sustainable urban development and nature-based investment as serious economic strategy.
Future growth in construction will need to align with circular economy principles, circular economy in construction, resource efficiency in construction and circular construction strategies. Low carbon construction materials, renewable building materials, green building materials, green building products and environmental product declarations (EPDs) will become central to sustainable material specification and eco-design for buildings. New building demand that ignores flood risk, heat demand, end-of-life reuse in construction and the wider environmental impact of construction risks creating stranded assets. Sustainable architecture, eco-friendly construction and low-impact construction are entering a stricter phase, where BREEAM, BREEAM v7 and whole life carbon performance will matter as much as planning consent, capital cost and short-term market recovery.
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