You will, by accident listening to the show, become an expert-not-really in matters of arable farming, organic crops, and milking.
Water, food and arable land will be more scarce, cities more crowded and hunger more widespread.
early 15c., "suitable for plowing" (as opposed to pasture- or wood-land), from Old French arable (12c.), from Latin arabilis, from arare "to plow," from PIE *are- "to plow" (cf. Greek aroun, Old Church Slavonic orja, Lithuanian ariu "to plow;" Gothic arjan, Old English erian, Middle Irish airim, Welsh arddu "to plow;" Old Norse arþr "a plow"). Replaced by late 18c. native erable, from Old English erian "to plow," from the same PIE source.