Divided into three main sections and all are excellent.

Part 1 - Life in northern Alberta in and around Fort McMurray. Describes the environs and the people drawn to the arduous work in the bitumen industry. Provides notable historic moments about the people that shaped the area.

Part 2 - The fire. Frightening; some statistics are mind boggling.

Part 3 - The science behind our warming world. More mind boggling facts and statistics that won't cheer you up. There's a hopeful message in the final chapter but I think the constant drive for more and higher business profits and the self-serving nature of humans will keep our world on a downward spiral. (Maybe the most surprising tidbit to me was the honest approach to the global warming science by the oil industry giants in the early years. The most predictable part of the book was how the oil industry eventually turned to denialism a la the tobacco industry.)

The writing is excellent and the stories move along at a good pace. Vaillant writes for a broad audience but always at a high level. I will seek out more of his books.