S8 Ep1123: Headline: The Medieval Warm Period and the Rise of Parallel Empires Guest: Professor Peter Frankopan Book Title: The Earth Transf

The John Batchelor Show · Jul 13, 2026 · 7m

Headline: The Medieval Warm Period and the Rise of Parallel Empires Guest: Professor Peter Frankopan Book Title: The Earth Transformed: An Untold History The Medieval Warm Period (950–1250 AD) was marked by low volcanism and climatic stability, facilitating the rise of "power empires" across the globe. Frankopan details the expansion of the Vikings into the North Atlantic, driven by the trade of valuable walrus ivory and hides. This colonization often involved violence and the forced movement of women from Ireland and Scotland to settle new lands like Iceland. In North America, the city of…