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=== Footprint of animal husbandry === | === Footprint of animal husbandry === | ||
Much of the impact of agriculture is due to animal husbandry. However, it is very difficult to have a percentage of greenhouse gases that is agreed due to many factors: | Much of the impact of agriculture is due to animal husbandry. However, it is very difficult to have a percentage of greenhouse gases that is agreed due to many factors: | ||
* Which Global warming potential (GWP) to choose: methane is the main warming gas due to livestock farming. If we look at a 20-year horizon, it has a GWP of 84, but of 28 only over a 100-year horizon: a difference of a factor of three.<ref>[https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_all_final.pdf#page=730 Page | * Which Global warming potential (GWP) to choose: methane is the main warming gas due to livestock farming. If we look at a 20-year horizon, it has a GWP of 84, but of 28 only over a 100-year horizon: a difference of a factor of three.<ref>[https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_all_final.pdf#page=730 Page 714 of IPCC fifth assessment report, working group #1] </ref> | ||
* Partnerships with various private institutions <ref>[http://www.fao.org/news/story/en/item/150555/icode/ FAO, ''New effort to harmonize measurement of livestock’s environmental impacts'']</ref> who have a vested interest in this number, such as : | * Partnerships with various private institutions <ref>[http://www.fao.org/news/story/en/item/150555/icode/ FAO, ''New effort to harmonize measurement of livestock’s environmental impacts'']</ref> who have a vested interest in this number, such as : | ||
** The European Feed Manufacturers' Federation (FEFAC) | ** The European Feed Manufacturers' Federation (FEFAC) |
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