A well written and researched book on the subject, dealing with the known scientific facts on global warming, sourced by the author from many different reference points including NASA, NOAA, The World Wildlife Fund, and Sterns Review on the Economics of Climate Change to name a few. The A-Z format, makes this a very unusual and easy read in this particular subject matter, and the book comes with some intriguing and amusing illustrations which add a little light heartedness to this worrying subject. I was a little sceptical about the problem to be honest, but after reading this book, the scientific facts would appear clear... we dont' have much time left to take action to avert serious problems if the causes of global warming are not addressed soon! An essential read on the topic!