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

NASA Climate Change 2 years 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 2 hours ago



The sustainable construction sector is shifting rapidly from incremental improvement to verified decarbonisation. New material technologies demonstrate that embodied carbon reductions no longer compromise structural or aesthetic performance. The adoption of low carbon construction materials such as advanced concretes is driving progress toward net zero whole life carbon performance, supporting the transition to genuinely sustainable building design. These innovations enable life cycle thinking in construction, where the carbon footprint of construction is assessed across supply chains and operational stages through whole life carbon assessment and robust lifecycle assessment tools.

Policy reform is reinforcing this transformation. The UK government’s ongoing review of construction product safety and environmental performance standards indicates stronger alignment between regulatory accountability and environmental sustainability in construction. Transparent environmental product declarations (EPDs) and consistent carbon reporting will underpin future requirements for sustainable building practices. This signals a move toward life cycle cost optimisation and resource efficiency in construction, advancing the shift to circular economy principles and circular economy in construction frameworks.

Global market trends add momentum. With energy security driving demand for renewable energy systems, wind-assisted shipping and floating solar are reshaping the environmental impact of construction logistics. The sector’s progress towards net zero carbon buildings depends increasingly on low carbon design, carbon neutral construction methodologies, and integration of eco-design for buildings within green infrastructure planning. As the industry adopts sustainable material specification and end-of-life reuse in construction strategies, the link between embodied carbon in materials and overall building lifecycle performance becomes measurable.

Firms slow to embed whole life carbon strategies risk losing credibility as regulation and client priorities converge around measurable sustainability outcomes. Sustainable construction now requires more than branding; it demands scientifically defensible evidence of carbon footprint reduction and adherence to circular construction strategies that support the long-term decarbonising of the built environment.

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