With water temperatures climbing to unprecedented heights, the National Oceanic...

CNN Climate 2 years ago

With water temperatures climbing to unprecedented heights, the National Oceanic and Atmospheric Administration has added new levels to its alert system to account for increasingly severe coral bleaching and higher mortality rates. Three more alert levels have been added to the coral reef alert system. Alert Level 5, the new highest level classified as "near complete mortality," means "greater than 80 percent of corals in the highlighted area are at risk of dying" due to high, long-lasting water temperatures. "The widespread intensity of this heat stress was the catalyst to this new update in December 2023," NOAA said. Coral reefs are highly sensitive to ocean warming. Last year – the warmest year since global records began in 1850, according to NOAA's Annual Climate Report – ocean temperatures surged to 100 degrees in some regions, and the ongoing marine heat wave is leading to the bleaching of entire reefs. Tap the link in our bio to read more. 📸: Lillian Suwanrumpha/AFP/Getty Images

layersDaily Sustainability Digest

Published about 10 hours ago



Bio‑based construction is entering a decisive implementation phase as new engineering standards drive measurable performance and credibility. The release of a structural manual for bamboo transforms renewable building materials from conceptual to certifiable, giving engineers a shared framework for specification, durability testing and fire safety that aligns with standards for steel and concrete. This move advances sustainable construction by supporting low carbon design and enabling embodied carbon measurement across permanent structures. Integrating bamboo into structural use contributes to whole life carbon assessment and lifecycle assessment processes that underpin sustainable building design and environmental sustainability in construction.

The White Rose Forest’s 25‑year strategy to plant 134 million trees across northern England represents a significant link between green infrastructure and construction supply chains. Managed afforestation aligned with local processing, design standards and resource efficiency in construction has potential to deliver low embodied carbon materials, support net zero carbon buildings and embed circular economy principles. Tree planting tied to sawmilling and design verification increases the availability of green building materials while strengthening the regional circular economy in construction.

These developments tighten the bio‑based supply chain from nature to building performance. Developers are urged to adopt sustainable material specification within procurement to reduce the carbon footprint of construction and achieve whole life carbon targets. Early collaboration with insurers and BREEAM assessors can accelerate certification and enable coherent life cycle cost evaluation. Aligning afforestation programmes with industrial capability, testing and environmental product declarations (EPDs) will solidify the foundation for carbon neutral construction and measurable decarbonising of the built environment.

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