The book includes 36 short essays predicting the consequences of global warming and has been translated into over twenty languages. The book reviews evidence of historical climate change and attempts to compare this with the current era. The book argues that if atmospheric carbon dioxide levels continue to increase at current rates, the resulting climate change will cause mass species extinctions. The book also asserts that global temperatures have already risen enough to cause the annual monsoon rains in the Sahel region of Africa to diminish, causing droughts and desertification. This in turn, according to Flannery, has contributed to the conflict in the Darfur region through competition for disappearing resources. Further consequences, argued in the book, include increasing hurricane intensity, and decline in the health of coral reefs.