Right now the Amazonian rainforest, Earth’s most biodiverse region, the source of a quarter of the world’s oxygen, is burning. This vital planetary organ is suffering at the hands of  what looks like an unholy alliance of power and greed. Yet its value to the planet and to humanity could hardly be overstated.

Buried in its forests and in the soil itself lie secrets of human evolution past and survival future. Paul’s latest documentary asks if our survival on the planet is merely a matter of chance and politics. It explores homo sapiens’ great leap forward in the wake of a prehistoric global wildfire. And what are the secrets to our survival buried at Karaca Dag in Turkey and in the ancient rainforests of the Amazon?