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

CNN Climate 1 year 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

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Europe’s investment shortfall is now strategic risk. BloombergNEF estimates $1.3 trillion a year is required across the UK, Norway and the EU to reach net zero by 2050, demanding rapid decarbonising the built environment with disciplined whole life carbon management, robust whole life carbon assessment and lifecycle assessment of both operational and embodied carbon. Capital should target measures with clear life cycle cost benefits and stronger building lifecycle performance, combining circular economy and circular economy in construction with circular construction strategies such as resource efficiency in construction, end-of-life reuse in construction and the use of low embodied carbon materials, low carbon construction materials, green building materials and renewable building materials under a rigorous sustainable material specification. Supply chains should rely on environmental product declarations (epds) to verify claims. This is how sustainable construction and sustainable building design deliver environmental sustainability in construction and achieve net zero carbon targets.

Nepal’s floods, which removed more than a tenth of national generation capacity, expose the cost of underinvesting in resilience and over‑reliance on single systems in hazard‑prone terrain. Design and siting must plan for compound events, diversify critical assets and harden supply chains, embedding life cycle thinking in construction so the environmental impact of construction and the carbon footprint of construction fall while reliability and community‑centred recovery improve through eco‑friendly construction and low‑impact construction.

Technology is reframing options for colocated power. A federally approved plan to install a nuclear reactor a mile underground in Kansas signals potential for large sites to pair on‑site, low‑carbon generation with energy-efficient buildings, low carbon design, low carbon building, carbon neutral construction and net zero carbon buildings. If consented and scaled, such strategies can help deliver net zero whole life carbon against frameworks like BREEAM and BREEAM v7, provided procurement also tackles embodied carbon in materials and green building products through verified environmental product declarations (EPDs).

Public health is strengthening the case for nature‑based solutions as clinicians prescribe time outdoors, putting green infrastructure on par with other critical systems. Cities that integrate parks, trees and blue‑green corridors into sustainable urban development and eco‑design for buildings advance sustainable building practices, green construction, sustainable architecture and sustainable design while driving carbon footprint reduction. The priority is design that integrates renewable energy, green building materials and renewable building materials into high‑performance, net zero carbon places, aligning sustainability with what communities need from every building and every construction project.

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