This week on The Reading Life: Journalist, novelist, and New Orleanian Nathaniel Rich talks about his new book, “Losing Earth: A Recent History.” Here’s what’s on tap in the literary life this week: Here in New Orleans: Lydia Fitzpatrick signs her novel “Lights All Night Long,” Monday, April 8, at 6 p.m. at Garden District Book Shop. The Women’s National Book Association of New Orleans meets Tuesday, April 9 at 5:30 at Howard Tilton Library, room 603, at Tulane University for a presentation by