28. Last Glacial Maximum of Sahul

Around 13,000 years ago, a wide range of large animal species started disappearing. The circumstances strongly implicate humans.Support the show 

13,000 to 12,000 years ago... From megafauna hunters in Tierra del Fuego to Amazonian rock painters, the formation of early South America hunter gatherer societies was a complex process, and a sudden burst of distinct human cultures appeared at the end of the Ice Age.Support the ... Show More

The first North American cultures appeared around 13,000 years ago, when megafauna roamed a continent still largely devoid of humans. Support the show 

To mark the start of the UN Climate Change Conference, or COP26, taking place in Glasgow in the UK, we’re looking back at the history of our awareness of climate change with some of the scientists and activists who have been trying to solve this global crisis in recent decades. W ... Show More

Professor James Hansen finally got US politicians to listen to his warnings about climate change in June 1988 after years of trying. He and fellow NASA scientists had first predicted global warming almost a decade earlier. Professor Hansen spoke to Ashley Byrne about his discover ... Show More

“For the first time, we are forced to consider the real risk of destabilizing the entire planet,” says climate impact scholar Johan Rockström. In a talk backed by vivid animations of the climate crisis, he shows how nine out of 15 big biophysical systems that regulate the climate ... Show More

The first international conference on the problems of the environment took place in Stockholm in 1972. It didn't concentrate on climate change but on the damage that was being done to animals and forests by the encroachment of humans and industry. It also highlighted some of the ... Show More

"For the first time, we are forced to consider the real risk of destabilizing the entire planet," says climate impact scholar Johan Rockström. In a talk backed by vivid animations of the climate crisis, he shows how nine out of the 15 big biophysical systems that regulate the cli ... Show More

For most of Homo sapiens' time out of Africa, we lived in a world defined by ice. But by around 20,000 years ago, the ice had begun to melt, the glaciers retreating back toward the poles and mountain ranges. This left behind a new world, a whole different series of environments, ... Show More

Sixteen percent of greenhouse gas emissions could be saved by using biochar, a simple fertilising technique adopted by tribes in the Amazon thousands of years ago. If produced on an industrial scale, scientists say biochar could be as powerful as renewable energy in the fight aga ... Show More

Justin looks at the period since the meteor that wiped out the dinosaurs, which had seen a steadily cooling climate - until we humans turned up. What can the last 66 million years teach us about the likely consequences of climate change? And can our species make the next big evol ... Show More

This week I’m joined by Yuval Noah Harari, author of bestseller ‘Sapiens: A Brief History Of Humankind’. We discuss how homo sapiens came to dominate the world, how our society is built on fiction, the creation of a class of useless people, and the future for our species. Hosted ... Show More