Hidden Water

Most of the changes scientists see on our planet are either visible to the naked eye or directly measurable.  But changes to our water systems are among the most difficult to see.  In this episode, we travel from the Antarctic ice sheet capturing over 60 percent of all freshwater on Earth, to massive groundwater aquifers that remain particularly elusive, to a freshwater system that acts as the primary economic, cultural, and environmental driver of southern Asia.  In short, we go in search of hidden water.

This episode was produced by Leslie Chang, Mike Osborne, and Miles Traer.
Additional music by Kevin MacLeod (License available here)

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History is a Mess

The very idea of an Anthropocene suggests that the world is changing faster than ever before.  And a growing number of historians, archeologists, and geologists are looking at our modern world in the context of deep time to place the rapid changes in their proper context.  In today’s show, Ian Morris discusses how societies have developed through all of human history – from Neanderthals to iPhones – and points out some trends we can extract and investigate from archeological data.  Specifically, Morris explains how geography drives human social development, but development changes the very meaning of geography.  If that sounds a little complicated… well, it is. But we speak with Ronan Arthur about the Native American Navajo as a sort of case study of this geography/social development concept.

This episode was produced by Leslie Chang, Mike Osborne, and Miles Traer.
Additional music by Kevin MacLeod (License available here)

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Fungi, a cedar, a Kau, oh my!

Invertebrates. Gutless, spineless– but perhaps underappreciated invertebrates. We probably don’t spend enough time thinking about that other category of organisms on earth, so on this episode we’re going to spend some time with maybe the most overlooked group of Eukaryotes: Fungi. As it turns out, there are (at least) five MIND BLOWING facts about fungi that we all need to know. We’ll then travel to Southeastern Alaska to study the changing forest community. A wave of climate-driven ecological change is sweeping across the region, and we’ll learn about what this means for forests and the people who live there. Finally on today’s show we leave the invertebrates and debut a new segment that we’re calling Convos with Kau (as in coversation with Kaustubh Thirmulai, PhD candidate in paleoclimate at UT-Austin).

This episode was produced by Leslie Chang, Mike Osborne, and Miles Traer.
Additional music by Kevin MacLeod (license available here)

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Land Use Change: a Hallmark of the Anthropocene

Humans have always been changing the earth’s surface, but the study of land use change has been greatly aided by satellite imaging since the 1970s. Professor Eric Lambin started his career working with satellite images to examine patterns of land change, and emphasizes that understanding the patterns requires going into the field and talking to the farmers and locals using the land. He also discusses how globalization and international trade can drive land use change in unexpected ways. Finally, Professor Lambin explains the concept of potentially arable cropland (PAC) and the relevance of “peak land” in the context of the Anthropocene, especially for policy makers.


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