What do concentrated animal feeding operations (CAFOs) in the US produce?

Concentrated animal feeding operations (CAFOs) are large-scale livestock facilities that confine animals, intensively managing their feeding and housing. One of the significant environmental impacts of CAFOs is their contribution to greenhouse gas emissions, particularly methane. Methane is a potent greenhouse gas, and ruminant animals like cows produce significant amounts during digestion through a process called enteric fermentation. It is estimated that CAFOs are responsible for a large percentage—around 20%—of the total methane emissions in the United States, which contributes to global warming and climate change.

The other options present inaccurate representations of CAFOs. For instance, while manure management is an important aspect of CAFO operations, not all manure is effectively diverted for soil restoration, and much of it can lead to environmental pollution if not managed properly. The production of leather tied to these operations specifically relates to the local and global markets but does not adequately capture the nature of CAFOs, particularly their role in methane emissions. Lastly, income generated by CAFOs may support some local economies, but it does not represent the broader environmental issues or the specific outputs of these operations. Thus, the correct choice emphasizes the significant contribution of CAFOs to methane emissions and under