Every week, our lead climate reporter brings you the big ideas, expert analysis, and vital guidance that will help you flourish on a changing planet. Sign up to get The Weekly Planet, our guide to living through climate change, in your inbox.In retrospect, last week was an interlude.

Michael K. Williams was known most famously for his portrayal of Omar Little on HBO’s The Wire. Other roles included Chalky White on Boardwalk Empire—also within the HBO family—as well as Professor Marshall Kane on NBC’s Community.In 2018, The Atlantic’s marketing team and HBO joined forces for a series called Question Your Answers, a collection of short films meant to challenge our certainties.

Updated at 3:00 p.m. ET on September 7, 2021When London vanquished cholera in the 19th century, it took not a vaccine, or a drug, but a sewage system. The city’s drinking water was intermingling with human waste, spreading bacteria in one deadly outbreak after another. A new comprehensive network of sewers separated the two. London never experienced a major cholera outbreak after 1866.

First comes a whistled tune—“The Farmer in the Dell,” delivered with extra menace. Then the sight of him—Omar Little, played by Michael K. Williams, stalking the streets of Baltimore in a billowing duster concealing a shotgun. Omar was the most indelible character on The Wire, one of TV’s greatest dramas, and the show was most viewers’ introduction to Williams, a captivating screen presence who was found dead yesterday in Brooklyn at the age of 54.

Three years after the release of her novel Fates and Furies—a literary bisection of marriage and privilege that was praised variously by President Barack Obama and Amazon (yes, Amazon) as the best book of 2015—Lauren Groff was sitting in a lecture theater at Harvard University, thinking about medieval nuns. She wasn’t in the market for a new book. She usually has a dozen or so different concepts in different stages of fruition orbiting within the solar system of her mind.