A breath of fresh air 😮💨
For the past 17 years, @nasa’s Aura satellite has watched our air get cleaner.
Nitrogen dioxide (NO2) is released into the atmosphere from burning fossil fuels, such as coal power plants or gasoline and diesel vehicles. This air pollutant has been linked to health problems including asthma. NASA’s Aura satellite has been measuring NO2 for nearly two decades.
This animation shows the yearly average NO2 from 2005 to 2022. You can see the air get cleaner. The cleaner air is primarily due to environmental rules that have helped reduce air pollution from power plants and cars.
#NASA #EarthData #NitrogenDioxide #AirQuality #Earth #NASAEarth
Video Description: A data visualization of average nitrogen dioxide levels over the United States as measured from space from 2005 to 2022. At the start of the animation, dark purple spots are seen over major cities throughout the country indicating high levels of air pollution. Rural areas are shown in light blue indicating low nitrogen dioxide levels. The dark purple spots fade into orange and then yellow as you move away from large city centers, however most of the Northeast is some shade of yellow-purple. As time moves forward the dark purple spots slowly shrink and fade leaving the majority of the map light blue with only small concentrations of dark purple over New York and Los Angeles.
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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