Arctic sea ice hit its annual minimum on Sept. 11, 2024, @nsidcnews reports....

NASA Climate Change 1 year ago

Arctic sea ice hit its annual minimum on Sept. 11, 2024, @nsidcnews reports. Sea ice spanned about 1.65 million square miles on that date, making 2024 the 7th-lowest Arctic sea ice extent since satellites began monitoring it in the 1970s. 🌊🧊 This year, Arctic sea ice shrank to a minimum extent of 1.65 million sq mi (4.28 million sq km). That’s well above the all-time low, but still below the 1981 to 2010 end-of-summer average of 2.4 million sq mi (6.22 million sq km). Sea ice is shrinking and getting younger. Today, most Arctic sea ice is thinner, first-year ice, which is less able to survive the warmer months than older, thicker sea ice. A @nasajpl study showed fall sea ice is now around 4.2 feet thick, down from a peak of 8.8 feet in 1980.

layersDaily Sustainability Digest

Published about 9 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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