In this issue of Public Health Action, Correspondence by Harries et al.1 highlights the importance of assessing the carbon footprint for TB treatment. This is an important topic that deserves greater attention for TB treatment, and for healthcare services as a whole. The term carbon footprint (CF) is an extension of the concept of ecological footprint, which was proposed in the 1990s.2 Since then, CF has become a measure to benchmark the total amount of greenhouse gases emitted over the lifecycle of a product, from the extraction and assembly of the raw materials, throughout its use and eventual disposal. Companies, sectors and interventions can develop and use such measures to quantify their impact on future climate change.
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