Planetary Energy Loop Explained

Your body is only 36% efficient at turning food into energy. Plants are like

tiny solar-powered chefs, using sunlight to turn the carbon dioxide we exhale

into sugar. Their waste product is the oxygen we need to breathe. Then,

our cells take that sugar and, inside tiny power plants called mitochondria, burn it to create

ATP—the energy currency of our bodies. Most of the energy from that sugar is actually lost

as heat, which is what keeps us warm. Our exhaust is CO2, which plants then

use to start the whole cycle over again. It's a planetary energy loop.