It was a very early morning in August when an entire mountainside in...

CNN Climate 1 year ago

It was a very early morning in August when an entire mountainside in Alaska's Tracy Arm fjord detached and slid into the deep ocean water beneath it. The slide created a gargantuan splash – a hyper-local, but massive tsunami that ran up the opposite mountain slope, leveling everything in its path as high as the Empire State Building. It ripped evergreens out of the ground, stripped a nearby island to bare rock and pulverized the glacial ice around it. The whole episode lasted minutes. About 15 miles away, a National Geographic cruise ship carrying around 150 passengers and crew started to move backward, pulled by suddenly shifting currents through an eerie fog. And twenty miles across the fjord's channel, three sea kayakers camping on high ground woke up to ocean water dripping into their tent, their gear strewn across the shore. One kayak was lost, swirling around in an ocean whirlpool. It would take days for the scale of the split-second devastation to become clear, but experts say it was miraculous that no one was hurt or killed. Many scientists believe this phenomenon is being spurred in part by rapidly melting glaciers exposing the mountainside. Without thick sheets of ice to buttress it, the rock face becomes destabilized. Alaska has warmed 4.5 degrees since 1950, according to federal data, and is the fastest-warming US state. Tap the link in bio for more. 📸 : Wolfgang Kaehler/LightRocket/Getty Images

layersDaily Sustainability Digest

Published about 1 hour ago



Climate damage and material waste are reshaping sustainable construction more forcefully than certification culture. The loss of 38 homes to wildfire in the Midlands has exposed the need for sustainable building design that treats fire resilience, flood resistance and passive survivability as core requirements. Shropshire fire crews’ warnings over escalating wildfire and flooding extremes underline a decisive shift for green construction: buildings must be designed for volatility, not historic weather patterns.

The UN’s warning that climate impacts could displace millions across South Asia raises direct implications for environmental sustainability in construction.

Large-scale migration would intensify pressure on housing delivery, infrastructure finance, sustainable urban development and supply chains for low carbon construction materials. Adaptation is now a construction pipeline issue, requiring life cycle thinking in construction, robust building lifecycle performance and a clearer link between resilience, life cycle cost and whole life carbon.

Materials innovation is moving towards the circular economy in construction. Plans for a wind turbine recycling facility at the Port of Inverness show renewable infrastructure confronting end-of-life reuse in construction. The sector’s claims on circular economy performance will increasingly depend on measurable circular construction strategies, resource efficiency in construction and sustainable material specification, not marketing language. Embodied carbon, embodied carbon in materials and the carbon footprint of construction must be assessed alongside operational energy if net zero carbon buildings and net zero whole life carbon targets are to be credible.

Research converting waste plastics, packaging and old CDs into polymer networks that harvest moisture from air points to future green building products and construction-adjacent materials for water-stressed regions. The science remains early stage, yet it supports the wider move towards low embodied carbon materials, renewable building materials where appropriate, and practical eco-design for buildings.

Laboratory findings showing duct tape outperforming sandbags as a flood defence reinforce a key lesson for sustainable architecture: resilience can come from inexpensive, rapidly deployable measures as well as major green infrastructure. The direction is clear. Sustainable construction is expanding beyond carbon accounting into whole life carbon assessment, lifecycle assessment, low carbon design, circular economy principles and climate practicality. The strongest projects will combine energy-efficient buildings, lower embodied carbon, carbon footprint reduction and durable adaptation to a harsher world.

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