I removed my previous review because I forgot to mention I thought the author handle the majority of the solutions well. On that basis I think the book is well worth reading and recommend it. That said, I can't tell if this is intended as serious or humor since it does have "humor" as one of its tags. I thought the author could have given more attention to the biosphere solution, though. Assuming humans can perfect habitable biospheres before we ruin our natural environment, having to live in biospheres--- whether on Earth or in Earth orbit--- would force humans (if they want to survive) to be accountable for every aspect of their consumption and reproduction. Such, small, self-contained Eco-systems would have to be properly maintained and managed and that would require us to finally change our habits of overconsumption and resource waste. Of course, the Earth is one large biosphere but, due to its size, we don't immediately notice the consequences of our poor resource management. In a world of smaller biospheres, the ramifications of poor management would be more immediate and require us to limit our behavior patterns if we wanted to survive. The great thing about e-books is they can be updated and it would be nice if the author gave a more serious consideration of the biosphere solution in a subsequent edition of this work.
(review of free book)