Last November, weather.com published Losing Louisiana, a look at the people whose homes and land are being lost as the Gulf of Mexico slowly swallows the state’s southern tip. Today, ProPublica continues the story with a massively interactive feature on the subject, documenting the land loss, the history that led the region here and the economic and environmental devastation that may lie in the future. Using satellite imagery, historic maps and photography, the online feature shows in clear green and...