The maximim number is a multiplication of the number of human by their average CO2 impact, and currently it's too high. The average carbon footprint per person

The maximim number is a multiplication of the number of human by their average CO2 impact, and currently it's too high. The average carbon footprint per person is 7 tonnes CO2e per year. 2T might be sustainable, and achievable (with smaller vehicles and less consumerist behaviors) No one decides about it for now, like we do for other invasive species, but we should probably start considering regulating ourselves