As always Sam Kean impresses. Exquisitely interesting book about something that I never expected to be so fascinating, the air around us. As a future physician one part that I'll carry with me is that there are traceable numbers of leukemia and cancer deaths associated with the atomic bombs the United States tested in the '40s and '50s. It's wild that the scientists of that day never considered wind patterns and the true damage of what they were doing to future generations. Just another example of the shortsightedness of capitalism and US imperialism. This then pairs nicely with the ending of the book about how mankind's impact on the atmosphere will eventually have the same impact on the number of humans on Earth as the radioactivity from those tests has on the number of blood cells in some of the world citizens. I do agree with the author that humanity will probably use some contraption to try and limit the damage of climate change. I also agree with his thought that this will go terribly wrong. Maybe not the author's intention but I leave reading this book a little more confident in my personal idea that having children is unethical due to the bleak future we would give them. I recommend this book because of its exquisite history of how humankind has shaped the atmosphere around us, and it's finale and what our future might hold.