A groundbreaking study published on 04 August 2025 demonstrates that greenhouse gas (GHG) emissions from drained peatlands—commonly used as grassland for dairy feed—are consistently omitted from standard life cycle assessments (LCAs), leading to substantial underestimates of dairy’s carbon footprint. In Europe, drained peat soils emit on average 31.7 t CO₂‑eq/ha/year, far more than typical mineral soils. When not included in LCAs, the true environmental burden of milk production is vastly understated .
Reviewing five recent European LCA studies, the researchers found only two explicitly incorporated drained peat emissions. Only one study consistently used energy‑corrected milk (FPCM) as a functional unit across farms on peat versus mineral soils. Analysis showed dairy farms on peat soils exhibit significantly higher emissions—approximately 1.32 kg CO₂‑eq per kg FPCM—strictly due to peat oxidation .
The paper emphasizes methodological gaps: LCA frameworks often exclude peatland-related emissions due to categorization under LULUCF (Land Use, Land‑Use Change & Forestry), separate from agricultural reporting. This generates incomplete carbon accounting and misleading sustainability conclusions .
Mitigation scenarios explored include rewetting peatlands or transitioning to paludiculture (e.g. productive biomass such as reed or cattail). These shifts can reduce emissions by ~16 t CO₂‑eq/ha/year but face economic and policy barriers, often requiring ecosystem‑service payments or subsidies to be viable .
Ultimately, the authors call for urgent integration of peatland emissions into dairy LCAs, development of standardized accounting protocols, and alignment with UNFCCC/ IPCC reporting frameworks to ensure transparent and accurate environmental assessments.
Industry Insight:
Incorporating drained peatland emissions into carbon accounting reshapes dairy sustainability benchmarking and can drive land‑use policy shifts—critical for investors, cooperatives, and R&D entities targeting low‑carbon dairy solutions.
Source : Dairynews7x7 Aug 5th 2025 Read the full paper here..