The West Indian rock iguanas were once ubiquitous on the Grand Cayman Island in...

CNN Climate 1 year ago

The West Indian rock iguanas were once ubiquitous on the Grand Cayman Island in the Caribbean, however the arrival of humans, and the invasive predators that came with them, brought deadly threats to the species. Habitat loss, hunting and a wave of feral cats and dogs pushed the lizards, referred to as "blue dragons," to the brink of extinction. In the early 1990s, researchers estimated there were between 100 and 200 blue iguanas surviving in the wild. But within a decade, those numbers had plummeted, with fewer than 25 individuals remaining in 2002. Thanks to ongoing conservation efforts, the blue iguana is back from the brink of extinction. Through captive breeding and a habitat protection program, over 1,200 have now been released into the wild, primarily in protected areas. This led to the species being reclassified from "critically endangered" to "endangered" in 2012, according to IUCN's Red List of Threatened Species. Read more at the link in our bio. #CallToEarth 📸: Laura Butz/National Trust; David Rogers/Getty Images; Flavio Vallenari/E+/Getty Images; Laura Butz/National Trust; Frank Polich/Reuters; Scott Olson/Getty Images

layersDaily Sustainability Digest

Published about 2 hours ago



Momentum in sustainable construction is now driven by tangible progress in materials and methods rather than declarations. The focus on reducing embodied carbon in materials and undertaking robust whole life carbon assessment is reshaping how developers, architects and engineers define sustainable building design. Initiatives such as the Reducing Plastics in Construction Summit reinforce the value of renewable building materials, eco-design for buildings and circular economy in construction frameworks to eliminate petroleum-based polymers and improve resource efficiency in construction.

Biobased composites, recyclable resins and modular approaches are being evaluated through lifecycle assessment tools that can accurately measure the carbon footprint of construction and inform sustainable material specification throughout each project stage. Digitisation is rapidly becoming integral to low carbon design and energy-efficient buildings. Advanced platforms now enable unified modelling of cost, performance and carbon, aligning lifecycle cost optimisation with environmental sustainability in construction.

TM2 Bygg’s software-led method illustrates how low carbon building processes built on data-driven insights help achieve net zero carbon buildings and deliver improved building lifecycle performance. At the policy level, regulators are reinforcing requirements for measurable reductions in embodied carbon and clear evidence of net zero whole life carbon outcomes. These shifts point toward an industry-wide transformation grounded in whole life carbon transparency and the adoption of BREEAM v7 and other sustainable building practices to standardise reporting.

The result is a market that values circular construction strategies, end-of-life reuse in construction and environmental product declarations (EPDs) as verification of a project’s environmental impact of construction. New renewable energy infrastructure, including next‑generation geothermal systems, could redefine the carbon footprint reduction potential of green building materials and low carbon construction materials. As baseload renewables expand, achieving carbon neutral construction and sustainable urban development becomes increasingly viable. The sector is moving beyond pilot projects toward a mature phase of green construction, integrating life cycle thinking in construction and decarbonising the built environment as core business practice.

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