Final answer:
One ton of oil equivalent energy releases about 1.2 × 10^13 kg/yr of CO₂.
Step-by-step explanation:
One ton of oil equivalent energy releases about 1.2 × 10^13 kg/yr of CO₂.
This is based on the fact that each kilogram of oil combusted produces 3.09 kg of CO₂, and taking into account the annual global energy from oil in Joules, which is 1.9 × 10^20 J/yr.
Converting this to kilograms, we get 3.9 × 10^12 kg/yr of oil, and multiplying this by the CO₂ production ratio, we get 1.2 × 10^13 kg/yr of CO₂ from oil.