Iceland's frozen, inhospitable winters have long protected it from...

CNN Climate 4 months ago

Iceland's frozen, inhospitable winters have long protected it from mosquitoes, but that may be changing. This week, scientists announced the discovery of three mosquitoes — marking the country's first confirmed finding of these insects in the wild. Mosquitoes are found almost everywhere in the world, with the exception of Antarctica and, until very recently, Iceland, due to their extreme cold. The mosquitoes were discovered by Björn Hjaltason in Kiðafell, Kjós, in western Iceland about 20 miles north of the capital Reykjavík. "At dusk on October 16, I caught sight of a strange fly," Hjaltason posted in a Facebook group about insects, according to reports in the Icelandic media. "I immediately suspected what was going on and quickly collected the fly," he added. He contacted Matthías Alfreðsson, an entomologist at the Natural Science Institute of Iceland, who drove out to Hjaltason's house the next day. They captured three in total, two females and a male. Alfreðsson identified them as mosquitoes from the Culiseta annulata species. The Culiseta annulata species is native to a huge part of the Eastern Hemisphere, ranging from North Africa to northern Siberia. It appears well adapted to colder climates, primarily because adults can ride out the cold in sheltered places, Alfreðsson said. "This allows them to withstand long, harsh winters when temperatures drop below freezing." Iceland is no stranger to the impacts of climate change and has experienced record-breaking heat. In May, temperatures in parts of the country were more than 18 degrees Fahrenheit above normal. This extreme heat was made 40 times more likely by climate change, an analysis from the World Weather Attribution network found. Read more at the link in our bio. 📷: Jens Büttner/picture alliance/Getty Images; Temujin Doran/CNN

layersDaily Sustainability Digest

Published about 2 hours 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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