Orion, the American magazine that “invites readers into a community of caring for the planet”, is running an extract from Joanna Pocock’s powerful new book, Greyhound. “Greyhound buses,” she writes, “feel like part of an overlooked ecosystem. One that uses less fuel and spews less CO2 into the air than individual cars. The space they create is a rare one: an environment where strangers are connected by the simple need to get somewhere. You can’t buy anything on a bus (like you can on a plane or train), you can’t upgrade either – you’re all in it together.”