Use N = N₀(2)^(t/T) where T = doubling time
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- Total = 60 + 5.4 = <<60+5.4=65.4>>65.4
- #### 65.4
- A science journalist visualizes CO₂ emissions growth: from 4 billion tons in 1960 to 36 billion tons in 2022. Assuming exponential growth, what was the doubling time?
- 36 = 4 × 2^(62/T) → 9 = 2^(62/T)
- Take log₂: log₂(9) = 62/T → T = 62 / log₂(9)
- log₂(9) ≈ 3.1699 → T ≈ 62 / 3.1699 ≈ <<62/3.1699=19.56>>19.56 years
