5 things1️⃣ ‘Day-zero droughts’Many parts of the world are predicted to endure periods of extreme and unprecedented water scarcity, a study found. It’s not clear exactly when and where the dire shortages will hit, but new research suggests some surprising answers. Quiz time🤖 What percentage of tech workers are using artificial intelligence, according to Google? Thanks for reading🧠 Quiz answer: D. The overwhelming majority of tech workers use AI for tasks like writing and modifying code, a new Google study found. Today’s edition of 5 Things PM was edited and produced by CNN’s Meghan Pryce and Sarah Hutter.