Why do penguins waddle?👇🐧 Waddling from side to side as a walking...

BBC Earth 2 years ago

Why do penguins waddle?👇🐧 Waddling from side to side as a walking technique requires a lot of energy, but paradoxically for penguins, it can also help to conserve it. A penguin’s proportions make them well designed for seamlessly diving and gliding through water, but their walk isn’t quite as elegant. As a penguin sways to one side, the kinetic energy of its swing is stored as potential energy, which it then uses to power its next step. By moving in this way, its centre of mass is raised, so their muscles expend less energy to walk. Penguins therefore recover eighty per cent of the energy that they use on each step, which is the highest of any terrestrial animal. For comparison, humans get back around 65% with each step. Studies into penguins’ movement may increase our understanding of gait, and could lead to mobility treatments for humans. #EarthCapture by @myeonghoseo . . . . #WorldPenguinDay #Penguin #AnimalFacts

layersDaily Sustainability Digest

Published about 11 hours ago



Cornwall’s geothermal brines are nearing commercial output of about 100 tonnes a year of battery‑grade lithium carbonate, strengthening domestic energy‑storage supply chains for electrified, energy‑efficient buildings and net zero carbon buildings. The shift supports low carbon design and sustainable construction by reducing import risk and improving environmental sustainability in construction.

A major analysis warns land and ocean carbon sinks are under intensifying pressure and that carbon pricing is failing to protect them. Developers can no longer rely on offsets to balance the carbon footprint of construction. Real reductions in operational and embodied carbon must lead project strategy, backed by whole life carbon assessment, lifecycle assessment, and life cycle thinking in construction. Robust data through environmental product declarations (epds), clear targets for embodied carbon in materials, and adoption of low embodied carbon materials and green building products are becoming standard practice. Alignment with BREEAM and breeam v7 can help verify net zero whole life carbon trajectories while optimising life cycle cost and building lifecycle performance.

The UK’s £400m loan to the Tropical Forests Forever Facility, aimed at protecting over a billion hectares of rainforest, could stabilise sustainable timber supply for mass‑timber, reinforcing renewable building materials within a circular economy in construction. Delivery depends on governance and sustainable material specification to ensure green construction outcomes and eco‑friendly construction that advances carbon neutral construction.

Industry capacity is inching forward as a major utility redeploys 500 veterans into smart energy and heat‑pump roles, easing the labour bottleneck stalling retrofit and decarbonising the built environment. Skills growth underpins sustainable building design, sustainable building practices, green infrastructure and low carbon building upgrades across sustainable urban development.

Wildfires reaching typically cool, damp parts of Europe underline the need for fire‑resilient façades, materials and landscaping integrated into sustainable design and eco‑design for buildings. Priority actions include resource efficiency in construction, circular construction strategies, end‑of‑life reuse in construction and circular economy approaches that deliver measurable carbon footprint reduction.

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