đĄ October 2025 was the third warmest October on record.
The Copernicus Climate Change Service (C3S) has published its latest monthly Climate Bulletin, focusing on key climate trends in October 2025.
The bulletin reports that October 2025 was the third warmest October, with an average surface air temperature of 15.14°C, which is 0.70°C above the 1991â2020 average for the month.
đ° This data visualisation, produced using C3S data, illustrates surface air temperature anomalies across parts of the Northern Hemisphere in October 2025.
Warmer-than-average temperatures were observed across much of northern and western Europe, where the average temperature was 10.19°C, or 0.60°C above the monthly average.
The Arctic Ocean northeast of Svalbard and the Canadian Arctic Archipelago were particularly affected, with surface air temperature anomalies reaching up to 8°C above average.
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Global construction is moving toward measurable decarbonisation as governments, investors and designers converge on a shared demand for **sustainable construction** aligned with verifiable whole life carbon assessments. The Global Cooling Watch 2025 report reframes thermal resilience as integral to **sustainable building design**, linking passive cooling and district systems to the mitigation of embodied carbon and the **carbon footprint of construction**. Cooling infrastructure in cities and cold chains is being repositioned as a foundation for **sustainable urban development** and equitable growth, particularly in heatâstressed regions of the Global South where adaptive, **energyâefficient buildings** define both resilience and economic productivity.
Across the private sector, climate accountability is tightening. Despite leaders anticipating tangible losses from inaction, many lack strategies based on **lifecycle assessment** or credible life cycle cost forecasting. Independent auditing guided by frameworks such as **BREEAM v7**, and enhanced **life cycle thinking in construction**, is expected to strengthen compliance, improve **building lifecycle performance**, and expand the uptake of **low embodied carbon materials**.
Technical innovation now defines opportunity as much as policy. Integrating **ecoâdesign for buildings**, circular construction strategies, and robust **resource efficiency in construction** is positioning the built environment as a central driver of net zero whole life carbon progress. The shift toward **green infrastructure**, **ecoâfriendly construction**, and **sustainable building practices** signals a structural recalibration of global supply chains. With **low carbon design**, **sustainable material specification**, and **endâofâlife reuse in construction** embedded into planning codes, the sectorâs transition from declarations to delivery is becoming irreversible.
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