Last year was 1.6 degrees hotter than the period before humans began burning...

CNN Climate 1 year ago

Last year was 1.6 degrees hotter than the period before humans began burning large amounts of fossil fuels, Copernicus found. It makes 2024 the first calendar year to breach the 1.5-degree limit countries agreed to avoid under the Paris climate agreement in 2015. Scientists are much more concerned about breaches over decades, rather than single years — as above that threshold humans and ecosystems may struggle to adapt — but 2024’s record "does mean we're getting dangerously close," said Joeri Rogelj, a climate professor at Imperial College London. Last year is part of a pattern of off-the-charts heat. Every single one of the world's 10 hottest years happened in the last decade, according to Copernicus data. The extreme weather that swept the globe last year shows just how dangerous life in a warmer world already is. Back-to-back hurricanes in the US, fueled by ultra-warm ocean temperatures, killed hundreds of people. In Spain, more than 200 people died in catastrophic floods. Amazon rivers fell to unprecedented lows during the region's worst drought on record and the Philippines experienced an extraordinary typhoon season, with six in just 30 days. The climate crisis played a role in all of these extreme events, according to scientific analyses. 📸 : Brian van der Brug/Los Angeles Times/Getty Images

layersDaily Sustainability Digest

Published about 8 hours ago



Clean‑energy economics are reshaping sustainable construction as declining costs in solar generation and electrification reinforce the financial logic of sustainable building design. The latest UK grid data show wind, solar and biomass supplying over half of national electricity, proving that low carbon design now cuts both operating cost and emissions. Developers adopting sustainable building practices built around whole life carbon assessment and embodied carbon targets gain a cost advantage, with electrified assets and renewable building materials outpacing fossil benchmarks.

Within sustainable urban development, the focus is moving from policy aspiration to practical delivery through eco‑design for buildings that align with net zero whole life carbon standards and BREEAM benchmarks. Across markets, policy remains uneven. The United States risks reversing momentum by diverting funds from offshore renewables toward fossil infrastructure, threatening the circular economy in construction and investment in low carbon construction materials.

European efforts to reform carbon pricing could soften incentives for low embodied carbon materials including low‑carbon cement and steel, delaying carbon footprint reduction in key supply chains. Leadership from clients applying lifecycle assessment and life cycle cost analysis is essential to maintain progress toward carbon neutral construction and decarbonising the built environment.

The retrofit agenda in England underscores the social dimension of environmental sustainability in construction, with millions of homes requiring energy‑efficient upgrades to meet the standards of net zero carbon buildings. Contractors capable of large‑scale retrofits integrating heat pumps, insulation, and resource efficiency in construction methods stand to capture the rising demand for eco‑friendly construction. The industry’s advantage now lies in embedding whole life carbon thinking, optimising building lifecycle performance, and applying circular construction strategies that reduce the environmental impact of construction while securing resilience through a measurable circular economy.

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