Halfway up the coast of Western Australia, American tourists Emily Wapman and...

CNN Climate 8 months ago

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

layersDaily Sustainability Digest

Published about 18 hours ago



Compressed earth block projects in Kenya’s drylands are signalling a shift towards sustainable construction that balances material performance with environmental sustainability in construction. By replacing kiln‑fired bricks and cement with locally produced low embodied carbon materials, these buildings achieve reduced embodied carbon while enhancing thermal comfort through passive design. The combination of thermal mass and vapour‑open walls supports sustainable building design adapted to warmer climates and delivers measurable gains in lifecycle assessment and life cycle cost efficiency.

As whole life carbon and embodied carbon in materials become central to regulation and procurement, codification and quality assurance will dictate how rapidly such natural materials scale to mainstream use. Compressed earth blocks in Kenya exemplify how local innovation aligns with sustainability targets and social benefits for communities adapting to climate stress.

European policy is steering the supply chain towards a circular economy in construction. Tighter controls on plastic imports are designed to foster a stable market for compliant recycled polymers and strengthen traceability. For manufacturers pursuing higher recycled content, this supports circular construction strategies and improves environmental product declarations (EPDs). For specifiers and project teams, it provides a stronger evidence base for whole life carbon assessment within sustainable building practices and reinforces the commitment to resource efficiency in construction.

The UK’s accelerating offshore wind capacity, now exceeding 16GW, deepens the transition towards net zero carbon buildings and reduces the carbon footprint of construction by decarbonising energy supply. As sites electrify and equipment integrates renewable sources, the alignment between energy‑efficient buildings and carbon neutral construction grows closer. This shift enables data‑driven evaluation of whole life carbon performance and encourages contracting models that value carbon intensity alongside cost, advancing low carbon design and net zero objectives across the sector.

In alpine zones and high‑risk regions, the integration of climate‑informed planning, geotechnical monitoring and enforceable safety zones underscores the need to view climate adaptation as a core aspect of sustainable architecture. Infrastructure such as Spain’s high‑speed rail demonstrates how green construction combined with whole life carbon accounting can deliver deep emissions cuts while improving resilience. The global construction industry must merge such systemic decarbonisation with eco‑design for buildings, green building materials and sustainable material specification, ensuring that every project contributes to long‑term building lifecycle performance and to decarbonising the built environment.

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