Deep within New Zealand's Nelson Lakes National Park, about a two-day hike...

CNN Climate 1 year ago

Deep within New Zealand's Nelson Lakes National Park, about a two-day hike from the nearest civilization, lies Rotomairewhenua, or Blue Lake. It was first discovered by Ngāti Apa, a Māori iwi, or tribe. It became a sacred place where they cleansed the bones of the dead, believing this would secure the spirit a safe journey to the ancestral Māori homeland of Hawaiki. Hikers have long commented on the lake's extraordinary color, but it was only around a decade ago that scientists discovered that the water of the sub-alpine lake had "exceptional optical purity" with a visibility of between 70 and 80 meters. That's in line with that of pure water, which they said made it "the most visually clear freshwater yet reported." The title of "clearest lake in the world" and photos of the stunning landscape have since been shared widely on social media, making the lake a popular tourist destination between December and March (during New Zealand's summer). But conservationists and the Ngāti Apa now fear that this increased popularity could threaten the purity of the lake. Read more at the link in @cnntravel's bio. 📸: Janet Newell; John Wotherspoon; Paul Bryant/Genesis Energy Ltd

layersDaily Sustainability Digest

Published about 2 hours ago



Homes England’s backing of a multi-million-pound Richborough debt facility shows that sustainable construction is entering a more exacting phase in which finance, planning and build-out matter as much as innovation. Public support is becoming central to decarbonising the built environment because sustainable building design, sustainable design and eco-design for buildings cannot scale without patient capital and a dependable pipeline. Schemes that advance will need credible whole life carbon assessment, lifecycle assessment and life cycle cost evidence, with far closer scrutiny of whole life carbon, embodied carbon, embodied carbon in materials and the carbon footprint of construction to support net zero carbon buildings and net zero whole life carbon targets.

SDCL Efficiency’s planned wind-down is a sharp warning that low carbon building and energy-efficient buildings are not automatically a bankable proposition, even where environmental sustainability in construction is compelling. The Considerate Constructors’ Scheme’s revised checklist and scoring model in the UK and Ireland raises the bar for measurable responsible construction, strengthening demand for BREEAM, BREEAM v7 and stronger building lifecycle performance. Developers and contractors that can prove circular economy and circular economy in construction principles, life cycle thinking in construction, resource efficiency in construction, sustainable material specification, environmental product declarations (EPDs), low embodied carbon materials and end-of-life reuse in construction will be better placed to deliver green construction, eco-friendly construction and sustainable building practices with commercial durability.

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