15/06/2026
🌍 Did you know the world's greenest place depends on one of its most barren?
It sounds like a contradiction, but it's one of the most striking connections on the planet — and a reminder, dear to the environmental humanities, that no landscape really stands alone.
The Amazon rainforest sits on surprisingly poor soil. Its heavy rains constantly wash nutrients away, leaving the ground far less fertile than all that lush green would suggest. So what keeps it growing?
The answer blows in from thousands of kilometres away. Every year, winds lift vast clouds of dust off the Sahara Desert and carry them across the Atlantic Ocean — and that dust is rich in phosphorus, the very nutrient the rainforest keeps losing. The desert, in effect, fertilises the jungle.
And much of it comes from a single place: the Bodélé Depression in Chad, an ancient dried-up lake bed whose dust is rich in the remains of long-dead microorganisms. A vanished lake, on another continent, quietly keeping the rainforest alive 🏜️🌳
We tend to imagine deserts as empty and rainforests as full — but the living world rarely respects the tidy categories we draw around it.
📖 Read more: https://science.nasa.gov/science-research/earth-science/29apr_amazondust/
