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 14 hours ago



Water is emerging as the critical constraint shaping sustainable construction and urban development. A United Nations warning of “water bankruptcy” positions scarcity as a core determinant of sustainable building design, forcing developers to integrate hydrological data into every feasibility study. Growth strategies in arid regions are now being rebuilt around circular economy in construction principles—combining closed-loop water systems, onsite reuse, and lifecycle assessment to ensure resilience in resource-constrained environments. The shift highlights the rise of life cycle thinking in construction, where water efficiency aligns with carbon footprint reduction and long-term life cycle cost outcomes.

Reconstruction in disaster-prone areas is demanding a redefinition of sustainable building practices. Indian townships rebuilding after landslides demonstrate the limits of traditional resilience models. A data-driven approach grounded in environmental sustainability in construction is replacing reactive rebuilding with preventative planning. Projects now value green infrastructure and community-led hazard mitigation as core performance indicators, embedding end-of-life reuse in construction and low-impact construction techniques as benchmarks for sustainable design.

The fragmented global energy transition continues to disrupt the carbon footprint of construction. As the embodied carbon of steel, cement and modular components depends heavily on place of manufacture, procurement teams are pursuing environmental product declarations (EPDs) and low embodied carbon materials to manage embodied carbon in materials more transparently. Contracts increasingly price carbon volatility alongside inflation and currency risk. Design professionals are under growing pressure to evidence net zero whole life carbon performance through rigorous whole life carbon assessment and life cycle cost modelling. This progression marks the industry’s deeper commitment to decarbonising the built environment and achieving carbon neutral construction.

Corporate investment is translating ambition into deliverable outcomes. Housing and workplace projects benchmarked against BREEAM V7 and net zero carbon buildings standards are demonstrating measurable improvements in green construction efficiency, renewable building materials integration and circular construction strategies. The distinction between retrofit and replacement is being framed by whole life carbon considerations and building lifecycle performance metrics. Each project is an applied case study in sustainable material specification and eco-design for buildings, proving that low carbon design and resource efficiency in construction are now commercially viable rather than aspirational.

Sustainable construction is no longer an environmental choice but an operational necessity. The convergence of water scarcity, embodied carbon accountability and resilience-based planning ensures that sustainable building design now serves as the foundation for both climate adaptation and long-term asset value.

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