Humans collectively produce more than 2 billion tonnes of carbon dioxide annually just by turning food into energy, a 74% increase over three decades largely driven by population growth. Unlike fossil fuel emissions, however, the CO2 we exhale is part of the natural carbon cycle, and scientists say measuring it more accurately could improve climate models.
This story was curated by Byte Panorama from reporting published by All Top News -- ScienceDaily. Our summary condenses the essential facts available at the time of collection; it does not reproduce the full article. Details, quotes and later updates may appear in the original report.