The Climate Chronicles

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life with exciting storytelling and cutting-edge science. In the fifth and final episode of our third season, Into the Holocene, Professor Degroot explores the most frightening concept in climate science and archaeology: collapse. First, he explains how the Bronze Age transformed the agricultural communities of the Levant, and contributed to the advent of new systems of domination that culminated in the world's first empire. He traces how new ways of growing and moving food made this empire both more vulnerable and more resilient in the face of climate change than the communities that had prevailed for the previous 300,000 years of human history. Then, he surveys the evidence for a remarkable, decades- or even centuries-long drought that swept across the tropics around 4,200 years ago. Did this 4.2ka BP event bring about the collapse of history's first empire? If so, what does that tell us about our future? And how important was agriculture, anyway, in reshaping our species - not to mention the world? This episode explores all of these questions, and more.  Season three of The Climate Chronicles takes listeners on an immersive journey through the remarkable changes in climate and human culture that shaped the early history of the Holocene, the geological epoch in which humans became the dominant species on our planet. It zooms in on small communities and follows continental trends across thousands of years, all while unpacking the creative detective work that distinguishes the sciences of the past.  For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life with exciting storytelling and cutting-edge science. In the fourth episode of our third season, Into the Holocene, Professor Degroot tells the mind-bending story of the most spectacular environmental change of our geological epoch: the drying of the Sahara Desert. Although it seems timeless, as old as anything on Earth, the Sahara is actually a recent creation. At the start of the Holocene, most of it was a savannah, watered by rivers that have long since evaporated. People fished alongside hippos and crocodiles in lakes scattered across what are now some of the driest environments on Earth. How did people live in the "Green Sahara?" What did they do when the Sahara dried out? And is it possible that one of the world's first great civilizations - ancient Egypt - emerged as climate refugees fled the encroaching sand? This episode answers all these questions, and more. Season three of The Climate Chronicles takes listeners on an immersive journey through the remarkable changes in climate and human culture that shaped the early history of the Holocene, the geological epoch in which humans became the dominant species on our planet. It zooms in on small communities and follows continental trends across thousands of years, all while unpacking the creative detective work that distinguishes the sciences of the past.    For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In the third episode of our third season, Into the Holocene, Professor Degroot asks a simple question: when was the last time that the Earth was as hot as it is today? It may be a simple question, but it has a complicated answer - one that touches on everything from schemes for nuclear missile silos in the Greenland Ice Sheet at the height of the Cold War, to ancient computers in long-forgotten shipwrecks. Some evidence suggests that, in the early or mid Holocene, Earth was just as hot as it is right now, but other evidence tells the opposite story. The answer to this "conundrum" may be just within reach . . . and there are few more important riddles to solve in climate science.  Season three of The Climate Chronicles takes listeners on an immersive journey through the remarkable changes in climate and human culture that shaped the early history of the Holocene, the geological epoch in which humans became the dominant species on our planet. It zooms in on small communities and follows continental trends across thousands of years, all while unpacking the creative detective work that distinguishes the sciences of the past.    For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In the second episode of our third season, Into the Holocene, Professor Degroot focuses on the archaeological site of Star Carr, where - just over 11,000 years ago - a group of families settled beside a small lake in what is now northern England. He takes listeners through the history of the archaeological and scientific research that has gradually revealed the extraordinary resilience of that little community in the face of the abrupt climate changes of the early Holocene. He reflects on what it might have been like to live in that community, then considers whether the resilience of people so unlike us, who lived so many years ago, can be cause for hope in a rapidly warming world.  Season three of The Climate Chronicles takes listeners on an immersive journey through the remarkable changes in climate and human culture that shaped the early history of the Holocene, the geological epoch in which humans became the dominant species on our planet. It zooms in on small communities and follows continental trends across thousands of years, all while unpacking the creative detective work that distinguishes the sciences of the past.    For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In the season premiere of our third season, Into the Holocene, Professor Degroot investigates one of the greatest turning points in human history: the dawn of agriculture. Touching on everything from farming ants to dying Martians, he explores why our species waited nearly 300,000 years to cultivate crops and domesticate animals. He traces the story of the Natufians of the Levant, who stood on the brink of agriculture just as the Younger Dryas abruptly cooled and dried their world. Evaluating new evidence from pollen cores, speleothems, and archaeological sites, Degroot asks whether climate stress forced the first farmers into existence — or whether the stable warmth of the Holocene finally allowed their long experiment with cultivation to succeed. And he reflects on how the “Natufian wager” set our species on a path that would transform not just what it meant to be human, but also the destiny of a planet.  Season three of The Climate Chronicles takes listeners on an immersive journey through the extraordinary changes in climate and human culture that shaped the early history of the Holocene, the geological epoch in which humans became the dominant species on our planet. It zooms in on small communities and follows continental trends across thousands of years, all while unpacking the creative detective work that distinguishes the sciences of the past.    For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In the fifth and final episode of our second season, Escaping the Pleistocene, Professor Degroot reveals how an extraordinary rise in sea levels, about 10,000 years ago, overwhelmed ecosystems and human populations from Europe to Australia. He evaluates whether ancient myths and legends, including the story of Atlantis, preserve traumatic memories of early Holocene flooding. And he provides some broad reflections on the 100,000 years of human and climate history covered in this season. Season two of The Climate Chronicles is an immersive journey through the extreme climate shifts that influenced some of the most important events in the history of our species, from a wave of extinctions that transformed ecosystems around the world to the emergence of agriculture. The season also explores the history of the sciences that have revealed how climate change shaped our deep past.    For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In the fourth episode of our second season, Escaping the Pleistocene, Professor Degroot unpacks concepts such as radiocarbon dating and climate vulnerability to explore the ingenious and diverse ways in which our ancestors coped with the Pleistocene's final, and in many ways most spectacular, climate changes. He explains how everything from asteroid impacts to volcanic eruptions may have triggered the dramatic breakdown in ocean currents responsible for the most recent of these changes, a thousand-year cold snap known as the Younger Dryas. Finally, he surveys cutting-edge research that suggests we might soon face a similar breakdown—with profound implications for our modern world.     Season two of The Climate Chronicles is an immersive journey through the extreme climate shifts that influenced some of the most important events in the history of our species, from a wave of extinctions that transformed ecosystems around the world to the emergence of agriculture. The season also explores the history of the sciences that have revealed how climate change shaped our deep past.    For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In the third episode of our second season, Escaping the Pleistocene, Professor Degroot provides different explanations for what may be the ultimate climate change disaster: the extinction of our closest relatives, the Neanderthals, a hominin species that may have been as smart as us. He shows us how new computer models can help us understand the possible causes for the disappearance of the Neanderthals, and considers whether their extinction provides a warning for our future.   Season two of The Climate Chronicles is an immersive journey through the extreme climate shifts that influenced some of the most important events in the history of our species, from a wave of extinctions that transformed ecosystems around the world to the emergence of agriculture. The season also explores the history of the sciences that have revealed how climate change shaped our deep past.    For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In the second episode of our second season, Escaping the Pleistocene, Professor Degroot explores how climate change influenced humanity's migration out of Africa, and into lands no other hominin had been to before. He unpacks why proving climate’s role in human migration (or any historical event) is so challenging. Then, he investigates the worldwide wave of extinctions that coincided both with humanity's dispersal around the world, and with the extreme climatic upheavals of the late Pleistocene.  Season two of The Climate Chronicles is an immersive journey through the extreme climate shifts that influenced some of the most important events in the history of our species, from a wave of extinctions that transformed ecosystems around the world to the emergence of agriculture. The season also explores the history of the sciences that have revealed how climate change shaped our deep past.    For an episode trailer and a transcript complete with citations, as well as maps, graphs, infographics, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science.   In the first episode of our second season, Escaping the Pleistocene, Professor Degroot describes the two biggest explosions in human history: the catastrophic eruptions of the Los Chocoyos and Toba super volcanoes, about 75,000 years ago. These cataclysmic blasts chilled the Earth, but recent research suggests that, against all odds, most of our ancestors survived unscathed. How is that possible? And where does the idea of a volcanic near-apocalypse come from? This episode explores those questions, and more.    Season two of The Climate Chronicles is an immersive journey through the extreme climate shifts that influenced some of the most important events in the history of our species, from a wave of extinctions that transformed ecosystems around the world to the emergence of agriculture. The season also explores the history of the sciences that have revealed how climate change shaped our deep past.    For an episode trailer and a transcript complete with maps, graphs, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In the fifth and final episode of our first season, Becoming Human, Professor Degroot tells the epic story of how climate change spurred the evolution of the last hominin species - including our own. He explains how ancient DNA is uncovering previously hidden chapters in this remarkable tale. He shows how industrialization and famine originally brought it to light. And he closes the season by considering the implications of the deep histories we've explored in the past five episodes.  The Climate Chronicles is really an audio book. The complete first season gives a unique overview not only of how climate change may have created our species, but also of the history of science that revealed our origins, and the creative detective work that climatologists, archaeologists, and geneticists use to dive into the deep past.   For an episode trailer and a transcript complete with maps, graphs, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science.   In the fourth episode of our first season, Becoming Human, Professor Degroot explores how our hominin ancestors learned to cope with, and even exploit, the wildly fluctuating climate of the Pleistocene. He uses the extraordinary migration of a hominin species named Homo erectus to introduce the concept of resilience: a key but contested term that can help us understand our fate on a warming world.    The Climate Chronicles is really an audio book. The first season gives a unique overview not only of how climate change may have created our species, but also of the history of science that revealed our origins, and the creative detective work that climatologists, archaeologists, and geneticists use to dive into the deep past.   For an episode trailer and a transcript complete with maps, graphs, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science.   In the third episode of our first season, Becoming Human, Professor Degroot touches on everything from Noah's Flood to nuclear submarines in telling the strange, three-century-long history of the discovery of the Ice Age. Then, he explains why rapid climate changes of remarkable intensity threatened our ancestors in the world of the late Pleistocene Epoch.   The Climate Chronicles is really an audio book. The first season gives a unique overview not only of how climate change may have created our species, but also of the history of science that revealed our origins, and the creative detective work that climatologists, archaeologists, and geneticists use to dive into the deep past.   For an episode trailer and a transcript complete with maps, graphs, and other images, visit TheClimateChronicles.com.

Created and narrated by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past—and what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through gripping narratives and cutting-edge science.   In our third episode, the second of our first season, Becoming Human, Professor Degroot takes listeners through the dramatic cooling of our planet that began some 45 million years ago. He explains how climate change influenced evolution - including the evolution of our distant ancestors in a drying Africa.  The Climate Chronicles is really an audio book. The first season gives a unique overview not only of how climate change may have created our species, but also of the history of science that revealed our origins, and the creative detective work that climatologists, archaeologists, and geneticists use to dive into the deep past. For an episode trailer and a transcript complete with maps, graphs, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science.   In our second episode, the first of our first season, Becoming Human, Professor Degroot introduces the far-fetched possibility that humanity might not be the first intelligent species to overheat the Earth. By investigating this idea, Degroot explains how scientists piece together the deep history of climate change on Earth.   The Climate Chronicles is really an audio book. The first season gives a unique overview not only of how climate change may have created our species, but also of the history of science that revealed our origins, and the creative detective work that climatologists, archaeologists, and geneticists use to dive into the deep past.   For an episode trailer and a transcript complete with maps, graphs, and other images, visit TheClimateChronicles.com.

Created, narrated, and produced by Professor Dagomar Degroot of Georgetown University, The Climate Chronicles reveals how climate change has shaped humanity’s past, and explores what history can tell us about the future of global warming. With clear, dramatic storytelling, each episode brings history to life through vivid storytelling and cutting-edge science. In our introductory episode, Professor Degroot uses one of the great adventure stories of the seventeenth century - the tale of fourteen desperate men deserted on two tiny Arctic islands - to explain why the history of climate change matters so much today. Along the way, he shows what climate change actually is, describes how we can trace it into the deep past, and reveals why it's so hard to identify its influence on human history. The effort to recover climate's past is all about creative detective work - the kind that can uncover how a small group of men survived, and died, centuries ago, in some of the extreme environments on Earth.    For an episode trailer and a transcript complete with maps, graphs, and other images, visit TheClimateChronicles.com.