I have read this book twice now.. Robert dismantles so many previously-held theories and mysteries about global extinction events, and then uses scientific evidence to back up what REALLY happened. I had previously read his book "Not by Fire But by Ice" which I would recommend reading first. Putting the two together provides a "chilling" picture! Basically, we need to recognise that Darwin was mostly wrong.. evolution is not a slow process. Evolution happens in breathtaking leaps soon after mass extnction events.. and it's NOT all down to a few stray asteroids either!
Magnetic reversals, magnetic excursions.. the major effects of our sun on seismic and volcanic activity.. massive irradiation events.. and the REAL reason for the Tunguska explosion in 1918.. finally, why extinctions, magnetic reversals, ice ages, major volcanic/seismic activity, are periodic.. and how we are already due for a "Little Ice Age".. glaciers are GROWING in 99% of glaciated areas.. sea levels are DROPPING.. right here, right now.. why? Because water is being locked up as snow and ice on land already.
Although the subject COULD be dry and boring, Robert takes you through, step by step.. he teases, he leads you..., then he drops bombshell after bombshell. You don't need to be a scientist to understand his work. The book also blows man-made climate change theory out of the water!
HIGHLY recommended!