This is one of the best books that I read. Bill Gates introduced the term like "Green Premium" and "51 billion tons"(BT) to make this book easy for the reader. The categories that he defined which produce green house gases as a percentage of 51BT is also worth noticing. Bill Gates has done so much for humanity that we cannot imagine, in my poor country in Asia we still are receiving his polio vaccines for free of cost.
If there is one person that deserves the Nobel Peace Prize most urgently that man is Bill Gates.
When you will read this book you will never forget the different terms and categories that he introduced in the book.
Bill Gates himself acknowledged that fact that his carbon foot prints are high as he travels on the his chartered planes around the World a lot and he said that he is putting more money in R and D to develop technologies to minimize his carbon footprints.
Don't forget this is the same person who warned us about Pandemics in his famous TED talk and now he is warning us about the impact , migrations, hunger and devastations after the climate change. This is the time that we take Bill Gates seriously and follow his guidelines.
The most useful thing in this book is that he not only introduces his readers the categories that are responsible for the green house emissions but he also proposes the solution of those problems category wise and last but not the least the formidable charts and graphs that he made in the book gives reader the birds eye view of different arguments that he makes in the book.
So well written, well organized , simple, clear and focused book that nobody should miss in his or her lifetime.