This is just the kind of material that has dumbed down two generations of high school and college students. Written to about a fifth grade level and chock full of the usual liberal global warming rubbish and 'if only the humans had not interfered with nature', etc, etc, blah, blah.
A typical example in Chapter 2 is about the the end of the mammoths circa 2,800 BC and the author says....
"Seemingly blind to what they were doing, humans continued to decimate the survivors (mammoths) until today's impoverished fauna was 'achieved'."
Palmer maintains that the deluge, or Noah's flood, probably didn't happen (God help us, it couldn't have, because it says so in the Bible), but then goes on twice to say that numbers of mammoths are found dead in waterholes and he "assumes" that they all fell in trying to get a drink. I am still laughing through my tears.
Don't bother buying this rubbish unless you want to regress to Neanderthal.