Mountain glaciers are melting at an accelerating rate.
How do we know? đ
Scientists have been making field measurements of glaciers like this one since the 1960s, as well as using aerial and satellite imagery to track the size of glaciers.Â
In 2022, a survey of 37 mountain glaciers across the globe found that 34 of those glaciers had lost mass. Scientists found that, on average, glaciers lost more than 3 feet (one meter) of ice thickness that year, and that ice loss from mountain glaciers globally has been accelerating over time.Â
Even in the far north and in a wet climate, Norwayâs Ă lfotbreen glacier, pictured above, is rapidly diminishing. This glacier had grown as recently as the 1990s, but has been shrinking since then due to more frequent and intense heat waves.
Video description:
A short video that fades back and forth between two satellite images. Both images show the same glacier, in August 2003 and September 2022. In the 2022 image, the glacier is smaller. Both images were taken during summers where significant melting occurred and in both cases the glacial ice is slightly gray or brown, because the previous winterâs snow had largely melted off the glacier.
The landscape consists of light brown mountains with layered rock ledges. Dark green forests cover the lower slopes and foothills.
#NASA #climatechange #Earth #glaciers
Water is emerging as the critical constraint shaping sustainable construction and urban development. A United Nations warning of âwater bankruptcyâ 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 principlesâcombining 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 industryâs 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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