So what’s the most revolutionary invention in the history of the American Republic? The internet, maybe? Or the electric bulb or the motor car? Perhaps. But according to the Harvard historian Joyce Chaplin, it might be the Franklin Stove, Benjamin Franklin’s innovation which she claims in an eponymous new book, represents an unintentional American revolution. What’s really important about the Franklin Stove, she explains, is that it democratized heating, thereby enabling ordinary Americans to survive the “Little Ice Age” of the late 18th century. In an 21st century America where research into global warming is now under threat, Chaplin’s intriguing The Franklin Stove is a convincing argument for the popular benefits of environmental science.

Here the 5 Keen On America takeaways in our conversation with Joyce Chaplin

* Franklin as a climate scientist: Chaplin reveals how Benjamin Franklin's work with his stove led him to understand atmospheric convection, which he then applied to explain larger climate systems like storm movements and the Gulf Stream. He essentially became an early climate scientist through his practical inventions.

* The Little Ice Age context: Franklin invented his stove during the Little Ice Age (1300-1850), particularly in response to the severe winter of 1740-41. Unlike today's climate crisis, there was virtually no "denialism" about climate change during this period - people openly discussed and sought solutions to the cooling climate.

* Franklin's environmental legacy: While Franklin initially created his stove to conserve wood and trees in Pennsylvania, his later models burned coal. This shift toward fossil fuels contributed to what Chaplin calls "an unintended industrial revolution" that ultimately led to our current climate warming crisis.

* Franklin's political evolution: Though a monarchist for most of his life, Franklin underwent a radical transformation later in life, becoming head of Pennsylvania's abolition society after having previously owned enslaved people. This challenges the notion that historical figures were simply "products of their time."

* Franklin's complex character: Chaplin, who has written extensively on Benjamin Franklin, portrays him as a self-cultivating narcissist who carefully crafted his public image and desperately sought fame from a young age. However, she acknowledges his genuine accomplishments and contributions to science and society, creating a more nuanced view of the founding father.

Joyce E. Chaplin is the James Duncan Phillips Professor of Early American History at Harvard University, where she also holds affiliations with the Graduate School of Design and Center for the Environment. She is the author of The First Scientific American: Benjamin Franklin and the Pursuit of Genius, among other books, and her writing has appeared in The New York Times, The Washington Post, The Wall Street Journal, and the London Review of Books. She lives in Cambridge, Massachusetts.

Named as one of the "100 most connected men" by GQ magazine, Andrew Keen is amongst the world's best known broadcasters and commentators. In addition to presenting the daily KEEN ON show, he is the host of the long-running How To Fix Democracy interview series. He is also the author of four prescient books about digital technology: CULT OF THE AMATEUR, DIGITAL VERTIGO, THE INTERNET IS NOT THE ANSWER and HOW TO FIX THE FUTURE. Andrew lives in San Francisco, is married to Cassandra Knight, Google's VP of Litigation & Discovery, and has two grown children.

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