The Time Used to Generate Fossil Fuels by the Sun
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- Area of the earth that faces the sun is 49M square miles = pi * (3952 mi)^2
- 1 square mile is 2.6M square meters
- Insolation from the sun is 1000W/square meter
- Efficiency of photosynthesis is 0.1%
- Energy stored in plants per day if earth surface was 100% filled with plants - 1000 J/second/sq m * 86400 seconds/day * 49^6 sq mi * 2.6^6 sq m/ sq mi = 1.1^22 J/day