Does anyone know how many m2 or acres of jungle/forests are needed to offset the carbon footprint of the average American family?
Assume a family of 3, where each person burns 20 metric tons of CO2 per year. For afforestation, National Academies report on negative emissions estimates 0.7-6.4 (Mg/(ha y) C) or 44/12 times that for CO2, so call it 60 metric tons / (3 (Mg/(ha y) C) * 44/12) = 14 acres.
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