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Reducing Greenhouse Gas Emissions from Arable Land and Grassland: The Case for Organic Farming—A Critical Review

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  • Jörg Gerke

    (Ausbau 5, 18258 Rukieten, Germany)

Abstract

The contribution of agriculture to the emission of the main greenhouse gases, CO 2 , N 2 O, and CH 4 , is estimated to be between 25 and more than 50% of the total emissions worldwide. These data indicate that in developed, industrialized countries, severe policies might be successful in strongly reducing greenhouse gas emissions by focusing on agriculture. However, despite its central importance, agriculture is not at the center of political debate or meaningful emission-reducing policies. In this scientific review, current knowledge of the factors affecting the emission of greenhouse gases, including carbon dioxide, nitrous oxide, and methane, from agriculture is critically discussed. The pathways through which the reduction in greenhouse gas emissions from agriculture can be achieved are evaluated. For this purpose, we list the main factors contributing to the emission of greenhouse gases from agriculture and evaluate the roles of agricultural intensification, industrialization, and organic farming in greenhouse gas emissions. If the present trajectory of agricultural development continues, industrialized, intensive conventional agriculture will become an increasing source of greenhouse gas emissions worldwide. Also, the increasing quantitative relevance of energy plants in agriculture will contribute to increasing greenhouse gas emissions. Organic agriculture may offer an alternative means to reduce greenhouse gas emissions by applying the following central boundary conditions: a. the omission of mineral nitrogen fertilizers produced by the Haber–Bosch process, b. the combination of crop and livestock production, and c. the application of nutrient recycling at a regional level. This kind of organic agriculture may combine relatively high and sustainable crop yields with low emissions of greenhouse gases. Industrialized agriculture, whether in its conventional or even its industrialized organic form, is an important source of greenhouse gases with increasing emissions worldwide. Under conditions of agricultural industrialization, industrialized organic agriculture will also contribute to increasing greenhouse gas emissions. At present, there are no political attempts in the countries of the industrialized Western hemisphere to address agriculture-related contributions to greenhouse gas emissions.

Suggested Citation

  • Jörg Gerke, 2025. "Reducing Greenhouse Gas Emissions from Arable Land and Grassland: The Case for Organic Farming—A Critical Review," Sustainability, MDPI, vol. 17(5), pages 1-17, February.
  • Handle: RePEc:gam:jsusta:v:17:y:2025:i:5:p:1886-:d:1597660
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    References listed on IDEAS

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    1. Cornelia Rumpel & Farshad Amiraslani & Lydie-Stella Koutika & Pete Smith & David Whitehead & Eva Wollenberg, 2018. "Put more carbon in soils to meet Paris climate pledges," Nature, Nature, vol. 564(7734), pages 32-34, December.
    2. Małgorzata Holka & Jolanta Kowalska & Magdalena Jakubowska, 2022. "Reducing Carbon Footprint of Agriculture—Can Organic Farming Help to Mitigate Climate Change?," Agriculture, MDPI, vol. 12(9), pages 1-21, September.
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