Halfway up the coast of Western Australia, American tourists Emily Wapman and Evan Risucci are riding a gentle current off Turquoise Bay, one of the country’s most remote and beautiful beaches.
It’s called drift snorkeling, and the water’s guiding them over Ningaloo, one of the world’s longest near-shore reefs, revealing coral that’s as white as the sand on the sea floor — drained of color by the stress of a severe and prolonged marine heatwave.
The Californians met in December on a dating app and are now touring Australia in an aging four-wheel drive they bought online and equipped for adventure.
Risucci, a filmmaker, admits he knows little about coral but is learning a lot from his travel companion. “I thought that the white coral was the live coral,” he said, squinting in the harsh Australian sun.
“It’d be good for tourists to know what’s actually happening,” he said. “Someone from the United States might come here and think, ‘wow, this is so pretty,’ and be completely oblivious to the fact that it’s all dead.”
It’s not all dead, molecular ecologist Kate Quigley told CNN from a boat bobbing above Tantabiddi Sanctuary Zone, a popular destination for local tour boats within Ningaloo Marine Park off the West Australian coast. Ningaloo Reef is sick, like many coral reefs around the world.
Read more at the link in @cnnclimate’s bio. #calltoearth
📸: Nush Freedman for CNN
Sustainable construction is moving from exemplar projects to market-wide system design, with clean steel emerging as a critical test for whole life carbon policy. A new study suggests the global shift to low-carbon steel could be achieved without raising consumer costs through a revenue-neutral policy model, strengthening the case for low embodied carbon materials in mainstream procurement.
For contractors, developers and public clients, the issue is no longer whether green building materials can perform, but how governments can de-risk low carbon construction materials, reduce the carbon footprint of construction and support net zero whole life carbon targets without shielding high-emission incumbents.
The UK retrofit agenda is becoming central to environmental sustainability in construction. The National Retrofit Hub’s call for a stronger framework comes as electricity and gas prices begin to decouple, improving the life cycle cost case for heat pumps, energy-efficient buildings and electrified homes.
Retrofit policy now needs consistent standards, skilled delivery capacity and consumer protection, backed by whole life carbon assessment, lifecycle assessment and better evidence on building lifecycle performance. Public support for requiring data centres to share waste heat with nearby homes signals a shift in sustainable urban development, treating rejected heat as green infrastructure rather than waste.
Climate adaptation is also reshaping sustainable building practices. GRAHAM’s appointment to deliver the Oxford Flood Alleviation Scheme highlights rising investment in resilience, while reports of roads melting in eastern England expose the environmental impact of construction decisions based on historic weather assumptions.
The built environment is being asked to cut embodied carbon in materials while improving durability against heat, flooding and infrastructure stress. The strongest response will combine sustainable building design, low carbon design, circular economy in construction, sustainable material specification, environmental product declarations (EPDs) and end-of-life reuse in construction. BREEAM, BREEAM v7 and other performance frameworks are likely to play a growing role as clients demand net zero carbon buildings, resource efficiency in construction and credible carbon footprint reduction across the full asset lifecycle.
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