Blog

New Research Reveals The ‘Extensive’ Environmental Impact Of Companion Dogs

People with companion animals can minimize dogs’ negative environmental impact with responsible behavior
By Liam Pritchett
11th April 2025

A newly published research article analyzes the various ways that humans keeping dogs as animal companions has a negative environmental impact.
The authors reviewed existing studies and found that “the environmental impact of owned dogs is far greater, more insidious, and more concerning than is generally recognised.”
Pacific Conservation Biology published “Bad Dog? The environmental effects of owned dogs” on Wednesday. Philip W. Bateman, an associate professor at Curtin University’s School of Molecular & Life Sciences, and Lauren N. Gilson, an academic researcher, ecologist, and conservationist, also of Curtin University, Australia, authored the research.
According to the research article, domesticated dogs kill and disturb “multiple species” directly, but their “mere presence” – even while leashed – also disturbs birds and mammals. Furthermore, their scent and excreta continue to disturb wildlife after the dog has moved on. MB: I may be able to find research that humans (that’s you and me) do the same! What is the next article about? Cats?
This excreta can also transfer zoonoses to wildlife, pollute waterways, and negatively impact plant growth. Dogs that physically enter rivers and streams may also pollute waterways directly due to the chemicals found in wash-off flea and parasite treatments.
Finally, the sheer number of “owned” dogs worldwide – approximately 900 million animals MB: ¿qué? – contributes to the pet food industry’s extensive resource consumption and carbon emissions. The authors highlight the need for increased education around responsible owner behavior. Read more: Plant-Based Diets For Dogs And Cats – What Does The Research Say?

The pet food industry, meat, and cultivated protein

As more people become aware of the significant negative impact the meat industry has on the environment, the pet food sector has also come under increased scrutiny. Producing animal-based food for dogs and cats makes up 30 percent of the meat industry’s environmental impact and releases millions of tons of greenhouse gas emissions (GHGs).
MB: the “logic” behind this statement is that animal are slaughtered to have by-products for the pet food industry. My ignorant assumption has always been that animal are slaughtered to provide human consumers with meat.
“The dog food industry should be included in any nation’s sustainability action due to its considerable environmental footprint,” write Bateman and Gilson in their research. MB: that looks like a false conclusion, at least as far as animal material is concerned

However, alternatives to traditional, animal-based pet food are increasingly competitive and available. The vegan pet food market could nearly double in value over the next decade, while cultivated pet food gained EU approval earlier this month. In February, a “world first” dog food featuring both plant-based ingredients and cultivated meat went on sale in the UK.
MB: it looks like plant-based being appropriated by the vegan cult movement. As if vegetarians and flexitarians have no say in the matter.

Read more: Is 2025 The Year Of Ethical Dog Food? MB: does this mean that dog food has been unethical for the last 2 generations or so?
And a last question: can demagogy also present itself in writing? And is it common to mention a source (a research article) without mentioning the article.