Thin ice: unlocking the secrets of climate in the world's highest mountains

The Sajama expedition. The mountain God. An island in the sky

Early days. Where next? Beginnings. A decade on Quelccaya

The warming sets in. First signs. The great experiment. Temperature follows suit. - China opens up

The essence of life. A city by a lake. The seesaw

More pieces for the puzzle. Casting about. From Tibet...to Peru. Altering the course of thinking. Pushing back the bar. Solving the mercer problem. Endurance and tragedy on Dasuopu

Kilimanjaro. Scratching the surface. Drilling deeper. The story in the snows.