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by gpm
2525 days ago
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Humans exhale something around 2.3 pounds of CO2 per day [0], 2.3 * 365 = 839.5 pounds per year, 4800 / 839.5 = 5.7 people per "surface area of a tree". That might be small enough that this can keep the CO2 level constant in a office... The average american carbon footprint is 19.8 tonnes per year [1], 19.8 tonnes / 4800 (pounds / "sa tree") = 9.082 surfaces areas of a tree per person to eliminate their carbon footprint. That's a lot better than I expected really... somewhat doubt my numbers. (All number here have huge standard deviations, decimal points on the approximation should not be read as indicators of variance). [0] https://www.reference.com/science/much-co2-human-exhale-3f8c... [1] https://www.theguardian.com/environment/datablog/2009/sep/02... |
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