Which greenhouse gas is primarily released from agricultural activities?

The primary greenhouse gas released from agricultural activities is nitrous oxide (N2O). This gas is emitted from several agricultural practices, particularly the application of synthetic fertilizers and manure to soil. When nitrogen from these fertilizers breaks down, it can produce nitrous oxide as a byproduct. N2O is particularly potent as a greenhouse gas as it has a much greater heat-trapping ability than carbon dioxide over a long time frame.

While methane (CH4) is also a significant greenhouse gas associated with agriculture, primarily from enteric fermentation in ruminant animals and manure management, nitrous oxide is often highlighted in discussions of greenhouse gases from fertilization practices. Both gases are critical in the context of agriculture, but nitrous oxide specifically is recognized for its substantial contribution to the agricultural greenhouse gas emissions. Thus, the focus on nitrous oxide in this context highlights its importance and impact on global warming.