Methodology for the calculation of emissions from agriculture : Calculations for methane, ammonia, nitrous oxide, nitrogen oxides, non-methane volatile organic compounds, fine particles and carbon dioxide emissions using the National Emission Model for Agriculture (NEMA).

Summary

Each year, the Netherlands reports both nationally and internationally on the amount of substances emitted into the air by the agricultural sector. This includes all substances listed in the Netherlands’ Emission Registration that require reporting for this sector, such as greenhouse gases and substances contributing to air pollution, including ammonia and particulate matter. The emissions are calculated in compliance with international guidelines. This is done using the National Emission Model for Agriculture (NEMA), which was developed in the Netherlands. For example, the NEMA calculates emissions of substances from stables and from manure storage and use. The NEMA is also used to calculate emissions of gases such as methane from different categories of animals and from manure. The model is updated annually to reflect the latest scientific insights. This time around, the methods used for different substances, as well as the implemented adjustments have been described. The model is adjusted each year in line with the latest scientific insights. This report describes the methods used for different substances, as well as the changes made to the model. Emission data can be found at www.emissieregistratie.nl. The data are used for reports mandated by international agreements and EU legislation, such as the reporting obligations stemming from the United Nations Framework Convention on Climate Change (UNFCCC); the Paris Agreement (PA); the Convention on Long-Range Transboundary Air Pollution (CLRTAP), which includes the Gothenburg Protocol; the EU National Emission reduction Commitments Directive (NEC Directive); and Regulation (EU) 2018/1999 on the Governance of the Energy Union and Climate Action and its implementing regulations. Furthermore, these reports serve as the foundation for national and international reviewers tasked with approving Dutch reports.