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

CNN Climate 8 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

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Global momentum in sustainable construction is reshaping both policy and practice. Offshore wind capacity is set to quadruple by 2035, anchoring the shift toward net zero carbon economies and supporting a built environment driven by decarbonising the construction sector. The UK’s pipeline of more than 700 grid-connected projects signals progress towards net zero whole life carbon performance, where every aspect of infrastructure delivery is assessed through whole life carbon assessment and life cycle cost analysis.

Despite advances in renewable power, non-domestic buildings continue to underperform on emissions reduction, emphasising the urgent need for retrofit strategies based on embodied carbon measurement and lifecycle assessment. The Building Controls Industry Association identifies this as a critical barrier to achieving energy-efficient buildings and net zero carbon buildings aligned with sustainable building design and environmental sustainability in construction.

Early contractor involvement is emerging as a proven method to improve resource efficiency in construction and reduce overruns, aligning procurement with circular construction strategies and sustainable building practices. Confidence in global carbon accounting remains unsettled following resignations within the Greenhouse Gas Protocol, casting doubts on the accuracy of embodied carbon in materials data used for environmental product declarations (EPDs) and whole life carbon assessments that inform BREEAM and BREEAM V7 frameworks.

Material flows define the next frontier of sustainable design and low carbon construction materials. Europe’s unchecked aluminium scrap exports jeopardise circular economy in construction goals, undermining the reuse of low embodied carbon materials and low-impact construction systems that enable end-of-life reuse in construction. In the UK, Enva’s £7.5 million investment in electrical recycling illustrates how eco-friendly construction and circular economy practices can strengthen domestic supply chains for renewable building materials.

The shift toward sustainable architecture and green infrastructure extends to digital transformation. London’s strategy to attract energy-efficient, low carbon data centres reflects a broader commitment to carbon neutral construction and sustainable urban development. With eco-design for buildings now embedded in planning, sustainable material specification and life cycle cost thinking in construction are becoming defining features of the modern built environment. The sector is moving from aspirational sustainability to measurable decarbonisation—embedding whole life carbon and circular economy principles as core drivers of the future of construction.

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