From this study of Ice Age remains across the planet emerges an effective and enlightening plea to combat global warming.

Combating global warming is a real challenge, yet it's the battle world-renowned climatologist Jean Jouzel has been fighting for his entire scientific career. His study of molecules trapped in ice cores for thousands of years enabled him to bring to light, for the first time, the importance of greenhouse gases in climate change.
In clear, spirited writing, Jean recounts his career arc, his work, and his activism with the IPCC, lucidly introducing readers to the study of past climates in order to better apprehend and comprehend climates yet to come.