carbon-cycle

The Amazon holds tens of billions of tonnes of carbon, makes about half of its own rainfall, and shelters roughly one in ten known species. Here is what a total loss would set in motion, and why the forest may not need to be fully cleared to fail.

Photosynthesis takes sunlight, water, and CO₂ and produces sugar and oxygen. It powers nearly every food chain on Earth — and it produced the air you're breathing right now.