The Evaluation Synthesis Report 2022-2023 summarises findings derived from the work of UNEP’s Evaluation Office. It draws on 46 in-depth evaluations of various UNEP initiatives and projects conducted in 2022 and 2023, and examines performance trends over four previous biennia: A positive performance trend continues for the proportion of evaluated projects in 2022-2023 attaining ratings in the ‘Satisfactory range’, the top-rated evaluation criterion was Strategic Relevance (96%). The evaluation criterion with the highest proportion of ratings in the ‘Unsatisfactory range’ was Monitoring and reporting (30%) – an area for improvement. Released: March 2024
Britain’s £195m expansion of green heat networks, now extended to Wales, marks a clear advance for sustainable construction and sustainable urban development. District heating is moving into mainstream procurement, with direct consequences for sustainable building design, low carbon design and energy-efficient buildings.
For developers pursuing net zero carbon buildings, heat strategy is now central to whole life carbon, whole life carbon assessment and life cycle cost decisions. Environmental sustainability in construction is becoming less about pledges and more about infrastructure delivery, planning certainty and measurable building lifecycle performance.
Warnings over missing Biodiversity Net Gain guidance for nationally significant infrastructure show that green infrastructure and environmental compliance now carry real programme risk. Biodiversity is a core design and land-use issue for sustainable design, eco-design for buildings and sustainable building practices, not a cosmetic addition.
A new process for recycling acrylic without loss of quality points to the kind of circular economy breakthrough the sector needs to cut embodied carbon, address embodied carbon in materials and lower the carbon footprint of construction. If scaled commercially, it could strengthen circular economy in construction, support low carbon construction materials, improve resource efficiency in construction and advance end-of-life reuse in construction. Green construction is being tested on what matters most: low carbon building systems, consent resilience and credible progress towards net zero whole life carbon.
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