Everyone leaves a legacy.

But a legacy can change over time as new generations re-examine old reputations.

From Wundery and Goalhanger Podcasts, I'm Afu Hirsch.

I'm Peter Frankepan, and in a brand new series we're exploring the lives of some of the biggest characters in history, from Napoleon to Picasso.

And asking, what does their past tell us about our present? This is legacy.

Follow now, wherever you get your podcasts. This is a CBS I on the world with John Bachelor.

Here's John Bachelor.

The Earth Transform, a new book, an extensive tour through Homo Sapiens and before,

mankind and the ecology of the earth.

We are in the 21st century, so this is a commonplace topic now, climate change.

However, I welcome Professor Peter Frankupan, Professor of Global History at Worcester College, Oxford,

whose no book is The Earth Transformed in Untold History, will begin in the Holocene with two violent

events to show that mankind responds to nature, responds

to catastrophe, responds to climate change, and gets lucky sometimes.

Professor, a very good evening to you.

Congratulations, we begin with the breakdown of the ice dam

in the lower and tide part of North America which changed the ocean circulation and affected

climate globally.

And then also within the same time frame, seventh, eighth century, eighth, seventh millennium before the common era, the

collapse of a piece of the Norwegian coast that created a tsunami. Those two events, what do they describe? How do they change

the nature of mankind at that point responding to nature? Good evening to you.

Good evening, it. Good evening.

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