The World Without Us

For a science duffer like me this was easy to read and I would recommend it. So us westerners have left depleted uranium with a half life of 4.5 billion years all over Iraq and expect them to like us? Ha! I had no idea of the ramifications of depleted uranium, heck the science side of this has passed me by. Stupid me. How could I have not given thought to armour piecing weaponry that leaves radiation traces of a half life of 4.5 billion years. Depending on who one wants to believe all that for either getting rid of weapons of mass destruction and/or getting hold of all that oil. Did I mention a half life of 4.5 billion years? Oh I did? Well according to this there is half a million tons of the stuff still lying around the US alone. Is it/was it worth it? Going to take a lot of convincing for this little black duck.

But lets not worry about that and look at all those nice buildings and monuments and various other man-made items that our species is so proud of. Once we are gone? They all go except maybe Mount Rushmore. That Panama Canal. Did I say that those weapons we have been using in the middle east leave radiation with a half life of 4.5 billion years? Oh yeah I did. Oh well at least a really nice ditch we have dug will fall over after only about 100 years if there is no one around to look after it and not long after no one will ever know of it's existence.

Yeah good book but pity about that last chapter and it's mystical electro magmatic brain wave stuff. I am sure the author meant well.

When I told people I was reading this non-fiction book and that the premise was “What would happen to the earth if the human race suddenly vanished?” the usual response was to say something like, “So it's fiction?”

Ugh. NO.

First of all, to understand what could happen, we have to understand what has already happened so far. And then, backed up by scientific knowledge from various experts in various fields, the author explains a very likely outcome of what would happen if we were just – poof – gone. This book is absolutely fascinating. So much so, that I was routinely ignoring the fantasy fiction I was concurrently reading and kept heading back to this book. I don't often find non-fiction page-turners but this one qualifies. And along with fascinating, this book is frequently alarming – but not in a strident, self-righteous tone or anything like that. This book presented me with many facts about the earth and our impact on it in a straightforward manner that just makes your proverbial jaw drop. The two most alarming chapters for me were Chapter 9: Polymers Are Forever and Chapter 15: Hot Legacy. In the former I learned all about the plastic refuse that is currently clogging our oceans. A LOT of plastic, mind-boggling... the Great Pacific Garbage Patch was mentioned and then I learned that there are at least six other large plastic-strewn gyres. So. That's bad. But then along comes Chapter 15 which goes into detail about radioactive waste, how much of it we have, what we're doing with it, and just how bad it is. HOLY CRAP. Take Uranium-238, for example. This “depleted” version of U-235 has a half-life of 4.5 billion years. In the United States alone, there's at least a half-million tons of it. U-238 is an unusually dense metal, so we've been making armor-piercing bullets out of it. (They can pierce tank armor.) There's enough concentrated U-238 in the bullet points that radioactivity in the ashen debris can exceed 1,000 times the normal background level. They'll emit radiation for more years than the planet likely has left. (That is, this stuff will still be radioactive when 4 or 5 billion years from now our sun expands to a red giant and incinerates the inner planets in our solar system. Nice.) I could go on but suffice it to say that this book should be required reading. An excellent book. Oceanography. a ringlike system of ocean currents rotating clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere.

The book does contain some interesting information, but it's a book of bits and pieces, many of which aren't directly related to the main theme. It has a very conservationist viewpoint, which I partly sympathize with and partly distrust.