Final answer:
To find the per capita CO₂ emissions, divide the total emissions of 36 billion metric tons by the population of 7.5 billion, resulting in 4.8 metric tons per person.
Step-by-step explanation:
To calculate the per capita carbon dioxide emissions for the region in question, we divide the total annual CO₂ emissions by the total population of the region. Here, the total emissions are given as 36 billion metric tons, and the population is 7.5 billion people. The calculation will be as follows:
Total CO₂ emissions = 36 billion metric tons
Population = 7.5 billion people
Per capita CO₂ emissions = Total CO₂ emissions / Population
Per capita CO₂ emissions = 36 billion metric tons / 7.5 billion people
Per capita CO₂ emissions = 4.8 metric tons per person
The emissions were 4.8 metric tons per person.