Sheep farming for dairy and meat production is responsible for 7.4% of greenhouse gas (GHG) emissions (FAO, 2017). Measuring these emissions directly is complex and expensive; therefore, the LIFE GREEN SHEEP project aims to estimate the carbon footprint (CF) of sheep production (milk and meat) in the five countries involved in the project (France, Ireland, Italy, Romania, and Spain) using life cycle analysis (LCA). The project's second aim is to achieve a 12% reduction in GHG emissions within ten years by proposing mitigation strategies for 282 innovative farms in Europe (16 in Sardinia), while ensuring the environmental, economic, and social sustainability of the involved farms. The 16 dairy sheep farms were selected uniformly across the regional territory, and each one was part of the “Agnello di Sardegna PGI Consortium”. A survey was conducted on these farms using a questionnaire administered to the owners; the questionnaire collected general information such as geographical location and farm size, flock composition, stabling and grazing management, management of farm surfaces (crops), feeding management, purchase of raw materials (feed, forage, fertilizers, and pesticides), and energy consumption. By inputting all the collected data into the CAP'2ER software (France/Institut de l'Elevage), an estimate of the environmental impact generated by these farms and their potential for carbon sequestration was obtained. Subsequently, based on the estimated impact of each farm, while also considering its capacity for atmospheric CO2 sequestration, one or more mitigation strategies were proposed and simulated to evaluate which solutions could be recommended to farmers for enhancing their environmental sustainability. Following the proposed mitigation strategies, impact simulations were conducted using Cap2ER to assess the potential for reducing climate-altering emissions. The average gross CF estimated for the 16 INNOVATIVE Sardinian farms was equal to 2.26±0.38 kg CO2eq/kg of normalized milk; the average amount of CO2 stored per farm was 1.21±1.01, resulting in a net CF of 1.05±1.08 kg CO2eq/kg of normalized milk. The percentage of emissions allocated to milk, meat, and wool was 61.1%, 37.9%, and 1.1%, respectively. Various mitigation strategies were proposed and simulated using the CAP2ER software, categorized by the farm sector involved: flock, crops, food and energy. Following the simulations conducted with Cap2ER, the average gross CF estimated was 2.14±0.39 kg CO2eq/kg of normalized milk; the average amount of CO2 sequestered per farm was 1.18±0.89, and the net CF decreased to 0.96±0.98 kg CO2eq/kg of normalized milk. The different mitigation strategies generally allowed for a reduction in the CF of sheep farms (- 9.26%), and those to enhance farm productivity led to an increase in the amount of milk and meat (including PGI lamb) produced while simultaneously decreasing GHG emissions.