Editing Pet (section)

== Environmental impact ==
{{One source section|date=May 2021}}
Pets have a considerable environmental impact, especially in countries where they are common or held in high densities. For instance, the 163 million dogs and cats kept in the United States consume about 20% of the amount of dietary energy that humans do and an estimated 33% of the animal-derived energy.<ref>{{Cite web |date=2017-08-03 |title=Dog, Cat Feces Linked To Climate Change: UCLA Study - CBS Los Angeles |url=https://www.cbsnews.com/losangeles/news/dog-cat-feces-climate-change/ |access-date=2024-04-09 |website=www.cbsnews.com |language=en-US}}</ref><ref name=":0">{{Cite journal |last=Okin |first=Gregory S. |date=2 August 2017 |title=Environmental impacts of food consumption by dogs and cats |journal=PLOS ONE |volume=12 |issue=8 |pages=e0181301 |bibcode=2017PLoSO..1281301O |doi=10.1371/journal.pone.0181301 |issn=1932-6203 |pmc=5540283 |pmid=28767700 |doi-access=free}}</ref> They produce about 30% ± 13%, by mass, as much feces as Americans, and through their diet, constitute about 25–30% of the [[environmental impact of meat production|environmental impacts from animal production]] in terms of the use of land, water, fossil fuel, phosphate, and biocides. Dog and cat animal product consumption is responsible for the release of up to 64 ± 16 million tons CO<sub>2</sub>-equivalent methane and [[nitrous oxide]], two powerful [[greenhouse gas]]ses. Americans are the largest pet owners in the world, but pet ownership in the US has considerable environmental costs.<ref name=":0" />