In broad daylight, law enforcement officers raid a warehouse on the outskirts...

CNN Climate 2 years ago

In broad daylight, law enforcement officers raid a warehouse on the outskirts of the city of Sukhumi in Abkhazia, a Russia-backed breakaway Georgian region. No one's there; no drugs or weapons either. Only a large cooling cabinet containing dozens of electronic devices. This is a cryptocurrency mine. A video of the raid was posted in December by the Abkhaz press service, one of many it has posted to YouTube since 2021. Crypto mining is banned in Abkhazia, yet for years this energy-intensive industry has flourished, attracted by the region's cheap hydropower. For Abkhazia, it comes at a cost. The region typically faces seasonal power shortages as water levels drop in the winter, but they have become more disruptive because of crypto mining, which is sucking up electricity 24 hours a day. What's happening in Abkhazia is extreme but it's indicative of a global trend. The crypto industry, while always volatile, is booming and is hungry for power. "Electricity is the largest cost input to crypto," said Theresa Sabonis-Helf, an energy security professor at Georgetown University. To get their hands on it, many miners — both illegal, like those in Abkhazia, as well as legally-operating companies — are looking to places where they can tap into cheap electricity, often those with plentiful renewables. Experts warn it can come at a cost for local people, exacerbating shortages and diverting clean energy. Tap the link in @cnn bio for more. 📸 : ImageBroker/Shutterstock

layersDaily Sustainability Digest

Published about 4 hours ago



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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