Swirling underwater "storms" are aggressively melting the ice shelves of two vital Antarctic glaciers, with potentially "far-reaching implications" for global sea level rise, according to a recent study.
Antarctica is like a fist with a skinny thumb stuck out toward South America. Pine Island Glacier is near the base of this thumb. Thwaites — known as the Doomsday Glacier because of the devastating impact its demise would have on global sea level rise — sits next to it.
Over the past few decades, these icy giants have experienced rapid melting driven by warming ocean water, especially at the point where they rise from the seabed and come afloat as ice shelves.
The new study, published last month in Nature Geosciences, is the first to systematically analyze how the ocean is melting ice shelves over just hours and days, rather than seasons or years, its authors say.
They found that, together with other short-lived processes, the storms caused 20% of the melting at the two glaciers over a nine-month period. The researchers also highlighted a worrying feedback loop.
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📸: Jeremy Harbeck/NASA
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.
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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