Editing Externality (section)

==== Scientific calculation of external costs ====
[[File:Visualization of percentage price increases for broad food categories.webp|thumb|"Relative percentage price [∆] increases for broad categories [...] when externalities of greenhouse gas emissions are included in the producer's price."<ref name="10.1038/s41467-020-19474-6"/>]]
A 2020 scientific analysis of external climate costs of foods indicates that external greenhouse gas costs are typically [[environmental impact of meat|highest for animal-based products]] – conventional and organic to about the same extent within that [[ecosystem]]-subdomain – followed by conventional dairy products and lowest for [[organic food|organic]] [[Plant-based diet#Sustainability|plant-based foods]] and concludes that contemporary monetary evaluations are "inadequate" and that [[policy]]-making that lead to [[Sustainable food system|reductions of these costs]] to be possible, appropriate and urgent.<ref>{{cite news |last1=Carrington |first1=Damian |title=Organic meat production just as bad for climate, study finds |url=https://www.theguardian.com/environment/2020/dec/23/organic-meat-production-just-as-bad-for-climate-study-finds |access-date=16 January 2021 |work=The Guardian |date=23 December 2020}}</ref><ref>{{cite news |title=Organic meats found to have approximately the same greenhouse impact as regular meats |url=https://phys.org/news/2020-12-meats-approximately-greenhouse-impact-regular.html |access-date=16 January 2021 |work=phys.org |language=en}}</ref><ref name="10.1038/s41467-020-19474-6">{{cite journal |last1=Pieper |first1=Maximilian |last2=Michalke |first2=Amelie |last3=Gaugler |first3=Tobias |title=Calculation of external climate costs for food highlights inadequate pricing of animal products |journal=Nature Communications |date=15 December 2020 |volume=11 |issue=1 |pages=6117 |doi=10.1038/s41467-020-19474-6 |pmid=33323933 |pmc=7738510 |bibcode=2020NatCo..11.6117P |url=|language=en |issn=2041-1723}} [[File:CC-BY icon.svg|50px]] Available under [https://creativecommons.org/licenses/by/4.0/ CC BY 4.0].</ref>