Greenhouse gas abatement strategies and costs in French dairy production

Mosnier, C., Britz, W., Julliere, T., De Cara, S., Jayet, P.-A., Havlik, P. ORCID: https://orcid.org/0000-0001-5551-5085, Frank, S. ORCID: https://orcid.org/0000-0001-5702-8547, & Mosnier, A. (2019). Greenhouse gas abatement strategies and costs in French dairy production. Journal of Cleaner Production 236 e117589. 10.1016/j.jclepro.2019.07.064.

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Abstract

The French dairy sector—like the rest of the economy—has to address the challenge of mitigating greenhouse gas (GHG) emissions to curb climate change. Deciding the economically optimal mitigation level and mix of abatement strategies requires knowledge on the cost of reducing GHG emissions. Agricultural bio-economic models can help identify which production-system changes are needed to reduce GHG emissions at different levels of incentives at minimal cost. The results reflect the model structure and parameter set, especially for GHG emissions accounting. Here abatement strategies and related costs for several levels of tax on GHG emissions in French dairy production are compared using four bio-economic models: the three supply models AROPAj, ORFEE and FARMDYN and the global partial equilibrium model GLOBIOM. It is found that between 1% and 6% GHG emissions abatement can be achieved at the current price of the EU allowances without substantially reducing milk production or outsourcing input production such as feed or herd renewal. Costs reflect the planning horizon: mitigation is more expensive when past investments are not amortized. Models that account for demand-side factors show a carbon tax has potential negative impacts on consumers through higher milk prices, but could nevertheless partly offset the reduction in income of farmers simulated by farm models. Model results suggest that promising on-farm GHG emissions abatement strategies include measures that let animals reach their full production potential and moderately intensive land management.

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