In 2016, ancient cave paintings of giant, horned beasts shed new light on the...

CNN Climate 1 year ago

In 2016, ancient cave paintings of giant, horned beasts shed new light on the mysterious origins of the European bison. These depictions showed a marked change in bison appearance between about 22,000 and 17,000 years ago – horns, humps and forequarters all diminished in size. This added weight to the genetic evidence suggesting that the European bison arose from cross-breeding of the now-extinct steppe bison with aurochs (an ancestor of modern cattle) around this time. The resulting European bison hybrid – also called the wisent – is the continent's largest living land animal. They once roamed across much of Europe and western Asia; however, consistent hunting and habitat loss over the last few centuries collapsed the population. The last wild individual was shot in the Caucasus in 1927, leaving just 54 alive in zoos and private parks. Since then, breeding programs and reintroductions across Europe have helped the bison bounce back. The IUCN classified the species as endangered in 1996 but, in response to the impressive population recovery, updated their status to near threatened in 2020. Today, there are around 7,000 free-roaming individuals. Read more at the link in our bio. 📸: Ingolf König-Jablonski/picture alliance/Getty Images; Thomas Lohnes/Getty Images; Dan Kitwood/Getty Images; Vasily Fedosenko/Reuters; Ingolf K'nig-Jablonski/picture-alliance/dpa/AP; Daniel Mihailescu/AFP/Getty Images; Kacper Pempel/Reuters

layersDaily Sustainability Digest

Published about 3 hours ago



Carbon‑intensive materials are confronting the limits of traditional production as carbon capture technologies for cement advance rapidly. These innovations could cut the embodied carbon and whole life carbon of concrete by up to three quarters within a decade, transforming the carbon footprint of construction. Progress depends on scaling sequestration facilities and embedding whole life carbon assessment in every project.

The transition marks a decisive step toward net zero whole life carbon outcomes and an industry aligned with low carbon construction materials and renewable building materials. Policy and oversight are reshaping the framework of environmental sustainability in construction. The UK Climate Change Committee’s warning about the country’s outdated infrastructure has driven a review of sustainable building design, retrofit strategy and resilience standards.

Across Europe, assessments of natural capital are influencing budget plans and encouraging circular economy in construction investment to safeguard soil, water and ecosystem services that underpin eco-friendly construction and green building materials supply chains. Regulatory shifts underline a broader move towards sustainable building practices and transparent lifecycle assessment.

The tightening of environmental rules in the United States, alongside fresh attention to environmental product declarations (EPDs), reflects a commitment to decarbonising the built environment. Financial modelling is edging closer to integrating life cycle cost and life cycle thinking in construction so that investors reward projects promoting resilience and resource efficiency in construction rather than short‑term compliance.

The global construction sector is entering a phase where sustainable construction and low carbon design define competitiveness. From eco-design for buildings and BREEAM v7 certification to circular construction strategies and end-of-life reuse in construction, industry leaders see that green construction, carbon neutral construction, and net zero carbon buildings are not aspirational ideals but essential metrics of sustainable urban development.

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