It is terrific. I can't remember the last time I read a book that was more fascinating and useful and enjoyable all at the same time. (Bill Bryson)

An engaging book that manages to present serious science without preaching. It offers tools that any readerwill be able to use and make informed choices, and even seasoned ecoenthusiasts will be in for plenty of surprises

(New Scientist)Enjoyable, fun to read and scientifically robust. A triumph of popular science writing. (Chris Goodall)If we're serious about really addressing climate change, we need to become energy and carbon literate, and get to grips with the implications not only of our choices but also the bigger infrastructures which underpin the things we consume. How can we educate our desires unless we know what we're choosing between? Mike Berners Lee, to my complete delight, has provided just the wonderful foundation we need - a book that somehow made me laugh while telling me deeply serious things. (Peter Lipman, Director of SUSTRANS)This book is amazing. I was either going "wow" or snorting with laughter. (Rachel Nunn, Director, Carbon Neutral Stirling)Curiously fascinating to both climate geeks and well-rounded human beings alike. (Franny Armstrong, Director of The Age of Stupid and founder of 10:10)

How Bad Are Bananas? was a groundbreaking book when first published in 2009, when most of us were hearing the phrase 'carbon footprint' for the first time. Mike Berners-Lee set out to inform us what was important (aviation, heating, swimming pools) and what made very little difference (bananas, naturally packaged, are good!). This new edition updates all the figures (from data centres to hosting a World Cup) and introduces many areas that have become a regular part of modern life - Twitter, the Cloud, Bitcoin, electric bikes and cars, even space tourism. Berners-Lee runs a considered eye over each area and gives us the figures to manage and reduce our own carbon footprint, as well as to lobby our companies, businesses and government. His findings, presented in clear and even entertaining prose, are often surprising. And they are essential if we are to address climate change.

Mike Berners-Lee is a professor of sustainability at Lancaster University and the founder of Small World Consulting, a world leader in supply chain carbon metrics and management that has worked with organisations of all sizes, from the world's largest tech giants to supermarkets to micro businesses. Mike makes regular speaking, TV and radio appearances to promote awareness of sustainability and climate change issues. He is also the author of The Burning Question and There Is No Planet B.