No guarantees: NATO members debate Ukraine’s future

Members of the alliance are conflicted over the prospect of Ukraine’s membership. In particular, America has changed its mind, and this could affect the future of the war. Because of rapidly rising sea levels, China’s coastal cities are on sinking sand. Will another great wall slow the tide? And, say hello to our new Style Guide.Please take a moment to fill out our listener survey: www.economist.com/podcastsurvey For full access to print, digital and audio editions of The Economist, try a free 30-day digital subscription by going to www.economist.com/intelligenceoffer