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 7 hours ago



Sustainable construction is entering a decisive phase as Europe and the UK embed environmental sustainability in construction regulations that advance low carbon design and net zero carbon buildings. The Future Homes Standard’s focus on heat pumps highlights an essential shift in sustainable building design where insulation performance determines true energy efficiency. Whole life carbon and embodied carbon have become central benchmarks through which the carbon footprint of construction is measured, driving policy and procurement.

The RAAC concrete crisis has amplified the need for whole life carbon assessment and lifecycle assessment of materials to ensure resilience, safety and compliance in public estates. The reconstruction of affected schools demonstrates progress toward circular economy in construction and underlines the necessity of low embodied carbon materials in rebuilding efforts.

Economically, the rapid decline in renewable costs is changing the life cycle cost profile of projects, reinforcing renewable integration as a risk management tool rather than a reputational exercise. Developers are incorporating eco-design for buildings and resource efficiency in construction to mitigate exposure to fossil fuel price volatility while meeting net zero whole life carbon goals. The sector’s embrace of BREEAM v7 and whole life thinking solidifies sustainable building practices across design and delivery.

London’s research community warns that the loss of urban tree cover threatens green infrastructure and the environmental impact of construction projects, urging planners to adopt sustainable urban development and circular construction strategies. The Royal Mail’s decarbonisation of its estate illustrates how even legacy institutions can achieve carbon footprint reduction through low carbon building upgrades and energy-efficient buildings. At the global level, the UN’s record climate transparency submissions strengthen the momentum for decarbonising the built environment through environmental product declarations (EPDs), sustainable material specification and end-of-life reuse in construction.

A genuine alignment of economics, regulation and cultural commitment now defines sustainable architecture. The sector’s strategic emphasis on whole life carbon, circular economy principles and green construction signals not a trend but a structural shift toward carbon neutral construction and enduring sustainability.

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