This excellent book, Plan B 2.0, which is a follow-on from Brown’s original Plan B which I reviewed here is now available on-line for free in the form of PDF files here.
I encourge everyone to read this book and to take to heart the warnings he issues. His concerns may seem like remote intellectual matters now but in not too many years, they will be in our back yards and they will have strong adverse effects on everyone of our lives.