Isn't the calculation misleading? It looks like it calculates the modern lifestyle CO2 and applies it to a baby. So the argument just goes, if no people, then no co2. Which is correct, although completely skipping anything about the actual underlying systemic issues for producing this much co2 in the first place.
This isn't an argument about morality or veganism, the link just seemed like a hit peace against environmentalism
What's bad about it?