One other big difference between the Novel and the TV Series:
In the novel the United States is a major player in the locations and chain of events.
In the TV Series the US doesn't even play a part. There are major players and locations in the US in the Novel. The places have ALL been relocated, and most of the American roles have simply been written out as unnecessary.
As an American myself, I think this was a good move. Gives a real look at how the grownups deal with environmental issues..