Collective human metabolism produces 2 billion metric tons of CO₂ a year, global study estimates
2 sources·Updated November 2, 2026

Covered by 2 sources
- SciTechDaily·4h agoHuman Bodies Are Producing Two Billion Tons of CO2 a Year
A new study reveals that the amount of carbon dioxide produced by human metabolism has increased dramatically over three decades. The carbon dioxide produced by human bodies as they convert food into energy increased by 74% over three decades, according to a University of…
Read at SciTechDaily → - Phys.org Science·19h agoCollective human metabolism produces 2 billion metric tons of CO₂ a year, global study estimates
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…
Read at Phys.org Science →
