Agriculture and CO₂ emissions

Agriculture is not only an important part of our diet, but also a key factor in the fight against climate change. According to current data, food production is responsible for around a quarter of global greenhouse gas emissions. To be more precise: the global food system accounted for between 21 and 37 percent of all global man-made emissions in 2023. 9-14% from agriculture alone.

How is CO₂ produced in agriculture?

The greenhouse gases emitted from agriculture are mainly carbon dioxide (CO₂), methane (CH₄) and nitrous oxide (N₂O).

CO₂ emissions mainly come from soil cultivation and the conversion of carbon reservoirs into agricultural land. Every time soil is tilled, the carbon bound in the soil is released, which contributes to the increase in CO₂ emissions.

Nitrous oxide is mainly produced by the application of fertilizers that are rich in nitrogen. These emissions can vary greatly depending on the type and amount of fertilizer used and the specific growing conditions.

Methane is mainly produced by the digestion of ruminants (such as cattle), which emit large amounts of methane through their unique digestive systems. These gases have a much stronger climate-damaging effect than CO₂; methane has a global warming potential of up to 30 times higher than CO₂ over a period of 100 years.

Challenges and solutions

The challenge is to significantly reduce emissions in agriculture without jeopardizing the global food supply. Some strategies include:

Sustainable agricultural practices: This includes minimizing tillage, using catch crops and improving crop rotation to maintain soil quality and store CO₂ in the soil.

Reducing livestock farming: A shift towards plant-based diets could significantly reduce methane and nitrous oxide emissions.

Innovative fertilizer technologies: The use of precision agriculture and advanced fertilizer applications can help minimize the need for nitrogen fertilizers and thus reduce nitrous oxide emissions.

Conclusion

To combat climate change, we need to rethink our food system. Shifting towards more sustainable farming practices and a less meat-heavy diet could not only reduce emissions, but also improve our health and that of the planet. A collective effort is needed to transform agricultural practices and raise awareness of the environmental impact of food.