Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
Emissions of greenhouse gases from energy use in agriculture, forestry and fisheries: 1970–2019
oleh: A. Flammini, X. Pan, F. N. Tubiello, S. Y. Qiu, L. Rocha Souza, R. Quadrelli, S. Bracco, P. Benoit, R. Sims
Format: | Article |
---|---|
Diterbitkan: | Copernicus Publications 2022-02-01 |
Deskripsi
<p>Fossil-fuel-based energy use in agriculture leads to CO<span class="inline-formula"><sub>2</sub></span> and non-CO<span class="inline-formula"><sub>2</sub></span> emissions. We focus on emissions generated within the farm gate and from fisheries, providing information relative to the period 1970–2019, for both energy use, as input activity data and the associated greenhouse gas (GHG) emissions. Country-level information is generated from United Nations Statistics Division (UNSD) and International Energy Agency (IEA) data on energy in agriculture (including forestry and fisheries), relative to use of gas/diesel oil, motor gasoline, liquefied petroleum gas (LPG), natural gas, fuel oil and coal. Electricity used within the farm gate is also quantified, while recognizing that the associated emissions are generated elsewhere. We find that, in 2019, annual emissions from energy use in agriculture were about 523 million tonnes (Mt CO<span class="inline-formula"><sub>2</sub></span>eq yr<span class="inline-formula"><sup>−1</sup></span>), while when including electricity they were 1029 Mt CO<span class="inline-formula"><sub>2</sub></span>eq yr<span class="inline-formula"><sup>−1</sup></span>, having increased 7 % from 1990. The largest emission increase from on-farm fuel combustion was from LPG (32 %), whereas significant decreases were observed for coal (<span class="inline-formula">−55</span> %), natural gas (<span class="inline-formula">−50</span> %), motor gasoline (<span class="inline-formula">−42</span> %) and fuel oil (<span class="inline-formula">−37</span> %). Conversely, the use of electricity and the associated indirect emissions increased 3-fold over the 1990–2019 period, thus becoming the largest emission source from energy use in agriculture since 2005. Overall, the global trends were a result of counterbalancing effects: marked decreases in developed countries in 2019 compared to 1990 (<span class="inline-formula">−273</span> Mt CO<span class="inline-formula"><sub>2</sub></span>eq yr<span class="inline-formula"><sup>−1</sup></span>) were masked by slightly larger increases in developing and emerging economies (<span class="inline-formula">+339</span> Mt CO<span class="inline-formula"><sub>2</sub></span>eq yr<span class="inline-formula"><sup>−1</sup></span>). The information used in this work is available as open data at <span class="uri">https://doi.org/10.5281/zenodo.5153241</span> (Tubiello and Pan, 2021). The relevant Food and Agriculture Organization Corporate Statistical Database (FAOSTAT) (FAO, 2021b) on emissions is maintained and updated annually by FAO.</p>