Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Over-rated

I was very excited for this book, but I honestly couldn't make it past the first chapter. I think the worst claim was when he siad that it a ruling elite could unleash a deadly virus on the world for which only they had the vaccines. I consider myself an environmentalist and know that global warming is an emergency that needs to be addressed, but from what I have read, this book does not compare to other books like "Plan B" by Lester Brown or "A Green History of the World" by Clive Ponting.