Growing plants requires far less carbon dioxide emissions, land, water and other resources than is needed to produce meat.
The United Nations and various other organizations are promoting veganism.
It is recognised for its high sustainability.
According to one study, pet dogs account for approximately 7.7% of meat consumed worldwide.
If people could eat plants directly, the food supply would increase dramatically, so this is attracting attention not only as a measure to combat climate change, but also as a solution to the problem of food shortages.