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Abstract
There’s a scarcity of knowledge about greenhouse gas estimates from various agricultural sub-sectors in developing countries. These still rely on default emission factors in strategies to reduce their greenhouse gases. In this study, environmental and health impacts of biogas adoption by smallholder farmers in Uganda were assessed. We quantified greenhouse gases to determine the mitigation potential of the solid manure piling system as practiced by smallholder farmers. Our results showed that depending on storage environment, piling as practiced by smallholder farmers reduces CH4 emissions during storage. This mitigation potential is comparable to the amount of carbon dioxide that would be sequestered by 9,127 agro-forestry trees in this region for 76 days. We examined health benefits using a cross-sectional study design. Our results suggested that adopting and using more than 80% biogas for cooking on average per day is associated with improved health benefits such as sustaining the antioxidant defense system.