The study looked at ways to reduce greenhouse gas emissions from European agriculture. Researchers analyzed three different strategies - using emission standards, trading emission permits, and imposing a livestock tax - to cut emissions by 20% by 2020. Results showed that each country's emission reduction varied depending on their farming activities. The choice of strategy impacted production, cost, and income in the agricultural sector differently. They also found that reducing emissions in the EU might lead to increased emissions elsewhere due to importing more feed and animal products. This info can help decide how to include agriculture in broader emission-cutting plans.