Defining common criteria for harmonizing life cycle assessments of livestock systems

Review of Sources of Uncertainty and Techniques Used in Uncertainty Quantification and Sensitivity Analysis to Estimate Greenhouse Gas Emissions from Ruminants

“…Life Cycle Assessment (LCA) is a framework that evaluates the environmental impacts of livestock production at various stages, such as enteric fermentation, feeding practices, and manure management [43,44]. The LCA framework also helps in identifying specific evaluation criteria for livestock-focused assessments, including transparency, reproducibility, completeness, fairness, and acceptability, and aids in developing tailored mitigation strategies for livestock farming [45].…”

“…However, the LCA framework has limitations like inaccuracies and robustness of sustainability in modeling greenhouse gas emissions from livestock [43,46]. Therefore, harmonization of LCA methods is needed, and uncertainty in input variables like milk yield affects emission estimates and the classification of farms [44,47]. Overall, reducing critical uncertainties is crucial for effective LCA use [48,49].…”