Three years of record low precipitation have led the Sau Reservoir in Spain’s...

NASA Climate Change 2 years ago

Three years of record low precipitation have led the Sau Reservoir in Spain’s Catalonia region to dry up to 1% capacity in March 2024. #Landsat satellites captured the change in the region’s second largest reservoir with these two images from March 3, 2023 and March 4, 2024. According to the Meteorological Service of Catalonia, 2023 was the second-driest year on a record that goes back 110 years, second only to 2022. The past three years in Catalonia have all seen the least amount of rain since 1914. On February 1, 2024, the Catalan government declared a drought emergency, which put restrictions on water consumption for residents, businesses, and farmers. Over the past three years, the water level in this reservoir has decreased substantially. In April 2023, the reservoir dipped to 7 percent of capacity. In early March 2024, the water level dropped to 1 percent of capacity. It is typically at about 65 percent of capacity for this time of year. Video Description: Alternating between two satellite images of the Sau Reservoir a year apart. The landscape around the oval shaped reservoir lake in the middle is green and textured, indicating different heights. There is a winding river that travels up to the top of the image on the left side then diagonally toward the reservoir in the middle. The river then winds to the right side of the image. In the first image there is a tan border around a blue-green body of water for the reservoir. In the second the reservoir is mainly tan colored with a little light green colored at the bottom. #NASA #ClimateChange #Drought #EarthFromSpace #Catalonia #Spain

layersDaily Sustainability Digest

Published about 11 hours ago



Compressed earth block projects in Kenya’s drylands are signalling a shift towards sustainable construction that balances material performance with environmental sustainability in construction. By replacing kiln‑fired bricks and cement with locally produced low embodied carbon materials, these buildings achieve reduced embodied carbon while enhancing thermal comfort through passive design. The combination of thermal mass and vapour‑open walls supports sustainable building design adapted to warmer climates and delivers measurable gains in lifecycle assessment and life cycle cost efficiency.

As whole life carbon and embodied carbon in materials become central to regulation and procurement, codification and quality assurance will dictate how rapidly such natural materials scale to mainstream use. Compressed earth blocks in Kenya exemplify how local innovation aligns with sustainability targets and social benefits for communities adapting to climate stress.

European policy is steering the supply chain towards a circular economy in construction. Tighter controls on plastic imports are designed to foster a stable market for compliant recycled polymers and strengthen traceability. For manufacturers pursuing higher recycled content, this supports circular construction strategies and improves environmental product declarations (EPDs). For specifiers and project teams, it provides a stronger evidence base for whole life carbon assessment within sustainable building practices and reinforces the commitment to resource efficiency in construction.

The UK’s accelerating offshore wind capacity, now exceeding 16GW, deepens the transition towards net zero carbon buildings and reduces the carbon footprint of construction by decarbonising energy supply. As sites electrify and equipment integrates renewable sources, the alignment between energy‑efficient buildings and carbon neutral construction grows closer. This shift enables data‑driven evaluation of whole life carbon performance and encourages contracting models that value carbon intensity alongside cost, advancing low carbon design and net zero objectives across the sector.

In alpine zones and high‑risk regions, the integration of climate‑informed planning, geotechnical monitoring and enforceable safety zones underscores the need to view climate adaptation as a core aspect of sustainable architecture. Infrastructure such as Spain’s high‑speed rail demonstrates how green construction combined with whole life carbon accounting can deliver deep emissions cuts while improving resilience. The global construction industry must merge such systemic decarbonisation with eco‑design for buildings, green building materials and sustainable material specification, ensuring that every project contributes to long‑term building lifecycle performance and to decarbonising the built environment.

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