For the good of all

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<abstract displayLabel="Summary">A technical article in The Actuary where Sara Joslin outlines the work of the actuarial group supporting the UK Treasury's review of the Green Bookthe government's guide for appraising public-sector projects. The piece critiques the current discount rate (STPR), stressing the need to update its components amid rising uncertainty, especially due to climate change and intergenerational impacts. Using Environment Agency case studies, it shows how small changes in the discount rate can significantly shift cost-benefit outcomes and influence the approval of transformational projects. The article ends with recommendations for the Treasury to modernize its approach and reduce reliance on purely quantitative analysis</abstract>
<note type="statement of responsibility">Sara Joslin</note>
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<title>The Actuary : the magazine of the Institute & Faculty of Actuaries</title>
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<publisher>London :  Redactive Publishing, 2019-</publisher>
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<text>02/02/2026 Number 7 - February 2026 , p. 42 - 45</text>
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