This week, we’re revisiting a topic that we discussed about a year ago on this podcast: the plan to potentially build a sea wall around Charleston’s peninsula. In the last year, there have been some significant updates to the plans, and reporter Chloe Johnson, who covers the coastal environment and climate change for The Post and Courier, is back today to recap those plans for us and explain all the important changes. For one, the estimated price of building the wall dropped significantly — by several hundred million dollars. We'll explain why and what's next for the plans.