Towards Sustainable Cities trough a Decrease in CO<sub>2</sub> Emissions Based on Creating Consciousness on Human Habits and Its Relations to Body CO<sub>2</sub> Emissions and Associated Impacts : Table 5

Table 5: Global impact of metabolic human CO₂.

Parameter	Units	Value
Estimatedworldpopulation (2015)	Persons	7 311 390 000
Average CO₂ generation by metabolism	Kg/day-person	0.85
Total CO₂ generation by metabolism	Ton/day	6231414
Approximate CO₂ generated in coal combustion	kg/kg coal	2.20
Equivalent coal combustion to generate CO₂ associated with average metabolism	Ton/day	2 832 461
Coal use in the world	Ton/day	21 430 137