Last summer, an abandoned factory in southwest Memphis got a new life courtesy...

CNN Climate 1 year ago

Last summer, an abandoned factory in southwest Memphis got a new life courtesy of the world’s richest man. Elon Musk’s artificial intelligence company xAI moved in to transform this unprepossessing building into the “world’s largest supercomputer.” Musk named it Colossus and said it was the “most powerful AI training system in the world.” It was sold locally as a source of jobs, tax dollars and a key addition to the “Digital Delta” — the move to make Memphis a hotspot for advanced technology. “This is just the beginning,” xAI said on its website; the company already has plans for a second facility in the city. But for some residents in nearby Boxtown, a majority Black, economically-disadvantaged community that has long endured industrial pollution, xAI’s facility represents yet another threat to their health. AI is immensely power-hungry, and Musk’s company installed dozens of gas-powered turbines, known to produce a cocktail of toxic pollutants. The company currently has no air permits, appearing to rely on a loophole for temporary turbines — but environmental groups say the exemption does not apply, and residents are angry. Read more at the link in our bio. 📸: Courtesy Steve Jones Flight by Southwings for the Southern Environmental Law Center; Courtesy Southern Environmental Law Center; CNN

layersDaily Sustainability Digest

Published about 7 hours 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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