Deep beneath the frozen landscapes of Earth lies an extraordinary archive.

It isn't stored in books.

It isn't carved into stone.

It is frozen inside the ice.

For thousands of years, layers of snow have accumulated across glaciers and polar ice sheets. As those layers are compressed into solid ice, tiny bubbles of ancient atmosphere can become trapped inside.

Each bubble is a fragment of the past.

A sample of air from another time.

A message from an atmosphere that no longer exists.

In The Ancient Ice That Remembers Lost Atmospheres, we journey deep into the world of ice-core science to discover how researchers reconstruct Earth's climate history from frozen evidence.

And microscopic evidence of environmental changes that happened long before written history.

We examine h ...