Planet-heating methane is escaping from cracks in the Antarctic seabed as the...

CNN Climate 3 months ago

Planet-heating methane is escaping from cracks in the Antarctic seabed as the region warms, with new seeps being discovered at an "astonishing rate," scientists have found, raising fears that future global warming predictions may have been underestimated. Huge amounts of methane lie in reservoirs that have formed over millennia beneath the seafloor around the world. This invisible, climate-polluting gas can escape into the water through fissures in the sea floor, often revealing itself with a stream of bubbles weaving their way up to the ocean surface. Relatively little is known about these underwater seeps, how they work, how many there are, and how much methane reaches the atmosphere versus how much is eaten by methane-munching microbes living beneath the ocean. But scientists are keen to better understand them, as this super-polluting gas traps around 80 times more heat than carbon dioxide in its first 20 years in the atmosphere. Tap the link in bio for more. 🎥 : Leigh Tate, Earth Sciences New Zealand

layersDaily Sustainability Digest

Published about 8 hours ago



Supply chains and valuation trends are reshaping sustainable construction. Mineral sourcing has become a critical determinant of embodied carbon, directly influencing the whole life carbon profile of buildings. As more than 100 countries engage in redefining mining and processing frameworks, the carbon footprint of construction materials such as steel, aluminium and copper will dictate future procurement strategies. Teams evaluating cost plans must now conduct whole life carbon assessments integrating life cycle cost and lifecycle assessment data to quantify environmental sustainability in construction.

This signals a shift toward circular economy practices, where low embodied carbon materials and transparent environmental product declarations (EPDs) govern material selection. The financing of renewable energy infrastructure across the UK and Europe demonstrates how cheap, clean power underpins sustainable building design and low carbon design. A £400m injection into solar and wind assets enhances the viability of net zero carbon buildings and electrified manufacturing sites, advancing low carbon construction materials and supporting BREEAM and BREEAM v7 certification pathways.

These developments strengthen the link between operational performance, resource efficiency in construction, and lower life cycle costs for energy-efficient buildings. Investors are embedding whole life carbon metrics into valuation models as part of decarbonising the built environment. Green construction premiums and brown discounts now reflect lifecycle risk, as market signals confirm that sustainable building practices and eco-design for buildings are shaping long-term asset performance.

The professional imperative is clear: achieve net zero whole life carbon through circular construction strategies, carbon neutral construction methods and end-of-life reuse in construction, ensuring the built environment aligns with global sustainability and green infrastructure goals.

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