Satellites, including those used for GPS and communications, will face greater...

CNN Climate 1 year ago

Satellites, including those used for GPS and communications, will face greater risks in coming decades during solar-triggered geomagnetic storms because of the effect climate pollution has on Earth's atmosphere, a new study found. The increasing volume of planet-warming carbon dioxide in the upper atmosphere is likely to make the air less dense, while geomagnetic storms have the opposite effect: The ensuing rapid changes in density as a result could cause serious troubles for satellite operations. This study, published in the journal Geophysical Research Letters, comes at a time when the world is growing more dependent on satellite networks for everything from internet access to navigation, as well as military applications. Geomagnetic storms occur when charged particles from the Sun interact with the Earth's upper atmosphere. Their most visible impact is the auroras that light up the sky with green, purple and pink light. But strong storms can wreak havoc on satellite operations and communication. A less dense atmosphere means satellites in the future would experience less drag, and that could lengthen their lifespan — and would also exacerbate the problem of more space junk in low Earth orbit, Nicholas Pedatella of the National Center for Atmospheric Research told CNN. Read more at the link in our bio. 📷: Ian Forsyth/Getty Images; Justin Ide/Bloomberg/Getty Images

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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