Abstract
Objectives:The study was undertaken to investigate the greenhouse gas (GHG) emission from livestock in Bangladesh.Materials and Methods:The GHG emission inventory of livestock in Bangladesh was estimated according to the tier 1 approach of the Intergovernmental Panel on Climate Change (IPCC) using livestock population data from 2005 to 2018. It was also extrapolated for the next three decades, according to the growth of the livestock population.Results:According to the calculation, the GHG emission from livestock was 66,586 Gg/year CO2 equivalent (CO2e) in 2018. This emission may rise to 69,869, 80,618, 94,638, and 113,098 Gg/year CO2e in 2020, 2030, 2040, and 2050, respectively. The share of enteric methane, manure methane, direct nitrous oxide emission, and indirect nitrous oxide emission in the total GHG emissions represented 44.0%, 3.6%, 51.5%, and 0.9%, respectively, in 2018. It may arise at a rate of 1.54%–1.74% annually until 2050.Conclusion:The GHG inventory may guide professionals to formulate and undertake the effective mitigation measures of GHG emissions from livestock in Bangladesh. However, this inventory can be amended following the tier 2 approach recommended by the IPCC if necessary data are available at the national level.
Highlights
The emission of anthropogenic greenhouse gasses (GHGs) is a global concern because of their huge climate change impacts
Materials and Methods: The GHG emission inventory of livestock in Bangladesh was estimated according to the tier 1 approach of the Intergovernmental Panel on Climate Change (IPCC) using livestock population data from 2005 to 2018
The estimated global anthropogenic CH4 emission was about 6,875 × 106 ton CO2 equivalent (CO2e) with the share of enteric fermentation of ruminants and their manure management by 29% and 4%, respectively, which may rise to about 7,904 × 106 ton CO2e by 2020 [2]
Summary
The emission of anthropogenic greenhouse gasses (GHGs) is a global concern because of their huge climate change impacts. The estimated global anthropogenic CH4 emission was about 6,875 × 106 ton CO2 equivalent (CO2e) with the share of enteric fermentation of ruminants and their manure management by 29% and 4%, respectively, which may rise to about 7,904 × 106 ton CO2e by 2020 [2]. The enteric fermentation is an indispensable biological phenomenon of ruminants, which may cause about 2%–12% of dietary gross energy loss as gas production, CH4 [4]. This gaseous energy loss by the enteric fermentation is significantly affected by the quality and composition of the diet of ruminants [5]
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