Cooling is one of the biggest untapped opportunities to deliver climate, health, and development gains together. While the sector already contributes seven per cent of global greenhouse gas emissions, and could double that share by 2050, over one billion people still lack access to life-saving cooling for health, food security, and medicine. This guide supports governments in confronting this challenge by integrating sustainable cooling into their Nationally Determined Contributions (NDCs). The NDC Cooling Guidelines offer a six-stage, step-by-step framework, supported by country case studies, to help policymakers assess hydrofluorocarbon and energy-related emissions, set sector-specific targets, and develop fully costed National Cooling Action Plans (NCAPs). The Guidelines emphasize Minimum Energy Performance Standards (MEPS), Kigali-compliant refrigerant phase-down, passive and nature-based solutions, as well as climate-responsive urban planning. These actions are underpinned by cross-ministerial coordination, a robust Measurement, Reporting, and Verification (MRV) system to track progress, and a strong focus on expanding equitable access. Together, they enable countries to integrate cooling measures into both adaptation and mitigation pathways. The NDC Cooling Guidelines were developed collaboratively by the UNEP Cool Coalition NDC Working Group, with contributions from the American University in Cairo; Climate and Clean Air Coalition (CCAC); Clean Cooling Collaborative (CCC); Collaborative Labeling and Appliance Standards Program (CLASP); Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) Proklima; the Ozone Secretariat; Sustainable Energy for All (SEforALL); United Nations Development Programme (UNDP); UNEP Copenhagen Climate Centre (UNEP-CCC); and UNEP United for Efficiency (U4E).
The European construction sector faces a turning point shaped by tighter carbon accountability and accelerating clean‑energy economics. European policymakers are strengthening carbon market mechanisms to sharpen the price signal for high‑emission materials such as cement and steel. For developers and designers committed to sustainable construction, this shift reinforces the urgency of addressing embodied carbon through transparent environmental product declarations (EPDs), sustainable material specification, and low embodied carbon materials. The focus is moving from compliance to proactive whole life carbon assessment as project teams seek to reduce the overall carbon footprint of construction.
Rapid decarbonisation of electricity grids is improving the economics of all‑electric, energy‑efficient buildings. With clean power generation surpassing half of the UK’s energy supply, as shown when wind and solar power delivered a record share of UK electricity, electrified heating and cooling now align with both whole life carbon and life cycle cost advantages. The drive for net zero carbon buildings and low carbon building strategies is transforming sustainable building design from an optional improvement into a baseline expectation.
Across the UK, the identification of millions of homes in energy crisis hotspots is opening a vast retrofit pipeline. The market demand for fabric‑first upgrades, resource efficiency in construction, and large‑scale delivery programmes is intensifying. This expansion is encouraging the integration of lifecycle assessment, life cycle thinking in construction, and the circular economy in construction practices to ensure lasting environmental sustainability in construction.
Global clean‑energy investment trends reveal growing policy risk where renewables are displaced by fossil fuel infrastructure. The volatility underlines the importance of circular construction strategies and the transition toward decarbonising the built environment. Stakeholders are preparing for stricter embodied carbon disclosure, low carbon design standards and net zero whole life carbon targets that will define green construction and eco‑friendly construction markets through the next decade.
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