Collective human metabolism produces 2 billion metric tons of CO₂ a year, global study estimates

November 1, 2026 · 10:00 pm 1 sources

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• Collective human metabolism produces 2 billion metric tons of CO₂ a year, global study estimates
  Phys.org · November 1, 2026 22:00
  A University of Bath–led study has estimated that the carbon dioxide produced by humans as our bodies turn food into energy rose by 74% between 1985 and 2015, reaching 2.05 billion metric tons a year. Researchers say the findings could help scientists better understand where carbon comes from,…