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 5 hours ago



Ocean governance reforms now carry direct consequences for sustainable construction and environmental sustainability in construction. The UN High Seas Treaty and proposed protections for the Antarctic Peninsula introduce stricter environmental impact assessments for offshore and coastal developments, signalling an era of detailed whole life carbon assessment in marine-related infrastructure. Developers of subsea cables, interconnectors, and CO₂ pipelines will contend with extended consenting processes and biodiversity restrictions that influence material selection, eco-friendly construction practices, and low carbon design decisions across multiple jurisdictions. The evolution of marine spatial planning aligns with circular economy in construction principles, recognising supply-chain carbon exposure as both a design and compliance issue.

Trade policy disruption poses further challenges to sustainable building design. Prospective tariffs on low-carbon materials—such as green building materials, steel, engineered timber, and heat-pump components—threaten project timelines and budgets. Anticipated responses include regional procurement strategies, adoption of sustainable material specification, and more rigorous evaluation of embodied carbon in materials and life cycle cost performance. Demands for verifiable environmental product declarations (EPDs) and building lifecycle performance metrics are expected to rise as clients seek transparency for carbon neutral construction targets.

Climate volatility is reshaping low-impact construction strategies, particularly in flood-prone and mountainous regions. Designers must adopt adaptive lifecycle assessment frameworks that prioritise redundancy, attenuation, and slope stability. These approaches support net zero whole life carbon goals and reduce the carbon footprint of construction, reinforcing resilience and resource efficiency in construction.

The policy debate on decarbonisation is shifting toward measurable outcomes. Governments are preparing performance-linked procurement and finance mechanisms that embed whole life carbon benchmarks into material supply chains. The accelerating move toward net zero carbon buildings, green construction, and BREEAM V7 standards signals the transition from intent to implementation. Markets for low embodied carbon materials and circular construction strategies are scaling at pace, defining a new baseline for sustainable building practices and comprehensive whole life carbon accountability across the global built environment.

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