The dawn of de-extinction

Hank Greely and Jake Sherkow discuss the science, morals, and ethics of de-extinction: bringing extinct species back to life.  As lawyers with an interest in biotechnologies, Hank and Jake explain how they first got involved with de-extinciton, how scientists propose to bring species back, and discuss the potential for de-extinction technology to help restore damaged ecosystems.  While discussing some potential side effects of this new process, Hank and Jake recall how a man obsessed with William Shakespeare transformed the ecosystem of New England, and how de-extinction might do the same.

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Anthropocene Borders

Geographer Reece Jones discusses his recent book “Border Walls,” examining the history of how and why societies have chosen to literally wall themselves apart.  He gives a brief history of political maps, how international lines reshape landscapes, and how the trend towards increased border wall construction contrasts with the view of a “borderless” world under globalization.  Jones also reveals which border wall is actually visible from space.

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The (mad) science of geoengineering

Climate scientist Ken Caldeira begins with a discussion of ocean acidification, a term he helped coin.  He follows with the story of how his name became attached to geoengineering, from his own skeptical beginnings to publishing a paper that basically said, “well, it works in the models but don’t try this at home.”  Along the way, Caldeira also shares some funny experiences addressing climate skeptics, including how geoengineering has even helped persuade a few.

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Welcome to the… Technosphere?

In this interview, Dr. Peter Haff of Duke sits down with Mike (and Mike sits down with Leslie) to explain the Technosphere. We learn that technology is emerging as a geologic force, what that means for the future of the planet, and how geologic perspectives are being reshaped in the Anthropocene.

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