“Marketplace Tech’s” Molly Wood is leaving journalism after two decades, including the past four years as the host of this show. More recently, Molly has been co-host of the Marketplace podcast “Make Me Smart” and host of the new show about climate change solutions, “How We Survive.” And since Molly’s a reporter who has asked some pretty hard questions of her guests over the years, Marketplace’s Kimberly Adams asks her questions submitted by listeners.