From a text message to a war, from a Valentine’s rose to a flight or even having a child, How Bad are Bananas? gives us the carbon answers we need and provides plenty of revelations. By talking through a hundred or so items, Mike Berners-Lee sets out to give us a carbon instinct for the footprint of literally anything we do, buy and think about. He helps us pick our battles by laying out the orders of magnitude. The book ranges from the everyday (foods, books, plastic bags, bikes, flights, baths…) and the global (deforestation, data centres, rice production, the World Cup, volcanoes, …) Be warned, some of the things you thought you knew about green living may be about to be turned on their head. Never preachy but packed full of information and always entertaining.