@Smersh
Not completely farcical, just mostly.
Probably referring to _ecological footprint_, which is to do with affected land. Not comparable to jets really.
Also the idea the dogs are large and eat a meat-based diet _raised for them_. Dog food is...scraps to put it mildly. I'd argue their food production has a nominal impact mostly due to transportation.
Jet manufacture, fuel production, emissions are many orders of magnitude higher. Not sure my calculator display has enough digits.
@b4cks4w exactly, those scraps cannot really contribute a whole lot of emissions outside of what we already produce for human consumption. I'm not sure about the other plants, but the Purina plant here in Denver still trains in a lot of their ingredients straight from the stockyards and grain sorting facilities. That's got to be towards the lower end of logistics / transport emissions.
Billionaires gonna be billionaires though!