In the heart of the Amazon Basin, where the borders and cultures of Peru,...

CNN Climate 3 months ago

In the heart of the Amazon Basin, where the borders and cultures of Peru, Colombia and Brazil converge, a tiny, shape-shifting island has become the unlikely setting for a diplomatic tug of war. “If God wanted, the river would change and even Santa Rosa could disappear,” said Gladys Hari Leiva, a hotel owner who has lived on the island for 21 years. The island’s mercurial geography makes it a difficult place to settle; families adapt season by season, walking across sandbanks in the dry months, then paddling canoes through flooded streets when the rains come. Santa Rosa’s fragility has not stopped Peru and Colombia fighting over it. In fact, its shifting shoreline has made matters worse. Yet despite these limitations, the island is coveted by the countries around it. Peru and Colombia have argued over who the island belongs to for decades. As the Amazon River moves, so too does the international boundary between the two countries. The main channel of the Amazon River constantly erodes existing land and deposits new earth. Each year the river carries roughly 1.2 billion tons of sediment from the Andes toward the Atlantic, reshaping its banks and islands as it flows. During high-water months, water spills over and settles across the floodplain, leaving behind up to 12 inches of fresh soil annually. Residents who have lived in the Basin for a long time are used to the seasonal ebb and flow of the water and land, but it’s becoming less predictable. Read more at the link in our bio. 📷: Santiago Ruiz/AFP/Getty Images; Luid Acosta/AFP/Getty Images/File

layersDaily Sustainability Digest

Published about 10 minutes ago



Sustainable construction is redefining its priorities as environmental sustainability in construction shifts from technology-driven solutions to place-based, resource-conscious design. Across climate-stressed regions, the focus is turning to whole life carbon assessment, lifecycle assessment and life cycle cost as essential tools to measure and control the carbon footprint of construction. Developments in the US Mountain West are embedding low carbon design principles, addressing drought and urban growth constraints through sustainable building design that integrates water efficiency, green infrastructure and renewable building materials into district-scale masterplans.

In India, reconstruction efforts in landslide-prone regions expose the financial and environmental risks of neglecting embodied carbon in materials and sustainable building practices. Resilient schemes now apply eco-design for buildings and life cycle thinking in construction to avoid repeating failures, reinforcing that whole life carbon and embodied carbon metrics must guide future housing strategies.

Urban housing demonstrates the growing viability of net zero carbon buildings and low carbon construction materials, supported by sustainable material specification and green building products that deliver measurable performance improvements. Investors are tying building lifecycle performance to life cycle cost benefits, transforming sustainable design into a mainstream financial metric rather than a niche initiative.

Corporate campuses and mixed-use retrofits are consolidating a retrofit-first logic. The drive to decarbonise existing stock is aligning with circular economy in construction principles, end-of-life reuse in construction and circular construction strategies that minimise demolition and embodied carbon losses. Achieving net zero whole life carbon and BREEAM V7 certification is becoming the benchmark for responsible modernisation, integrating resource efficiency in construction and environmental product declarations (EPDs) into procurement systems.

Uneven policy frameworks and material supply constraints are prompting adaptive low-impact construction strategies that incorporate circular economy thinking and carbon footprint reduction across borders. Designs must allow flexibility to meet differing lifecycle assessment standards while maintaining alignment with global goals for decarbonising the built environment.

Future-ready sustainability depends on district-level efficiency, hazard-aware land planning and community-led stewardship. Success belongs to those who demonstrate environmental sustainability at the level that truly counts—the whole place—delivering net zero carbon outcomes through sustainable construction that unites performance, resilience and economic viability.

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