LOS ANGELES—Pledging to cut down on fossil fuels in any way they could, a climate-conscious Drake, Kylie Jenner, and Elon Musk were spotted Friday cramming into a celebrity Megabus. “Before, I’d probably fly private between New York and L.A., but now, I’d much rather take a Megabus for a 45-hour, 3,000-mile trip…
