What I learned from this book is that the 20th century is not just "business as usual," much as that term is used in a derogatory way today among environmentalists. Humans really had a very profound and disturbing effect on the environment. The 20th century really was totally, totally different from anything that had happened before. It's the "hockey-stick" graph phenomenon, multiplied over and over again. He talks about cities, biodiversity, the atmosphere, the land, the oceans, everything. He has a firm grasp of the underlying technology that's operating. Obviously this can't continue forever, or even for more than just a few more years, but if there's any doubt on this point in your mind, this would be a good book to start with. ( )

Sub-titled "An Environmental History of the 20th Century", this is a sober and objective survey of environmental changes over the past 100 years. I was concerned this would be an emotional appeal or judgmental polemic from the left - but not the case, it is academic and professional history from an environmental perspective (the environment, not "environmental movement"). It's encyclopedic in scope and style.

I would not call this an "entertaining" read (although some of the facts really fire the synapses), but it is deeply rewarding as a broad survey of a very large and complex problem. The chapters and sub-sections are arranged in a logical outline making it possible to read the chapters in any order.

The main idea of the title "something new under the sun" is that humans have so fundamentally changed the environment that things really are very different now than they have ever been historically. To regard our current conditions of energy availability, access to water, unending economic growth - as enduring and normal appears to be an interesting gamble given the facts.

Some interesting trivia: humans did not become the dominate primate until about 8,000 BC with the rise of agriculture (baboons outnumbered humans before then). About one-fifth of all humans that ever lived did so in the 20th century. In sheer energy terms, if all modern technology and energy sources were not available, the average American would need about 70 human slaves to maintain the current standard of living (each American "directs" 70 energy-slave equivalents). Each year, humans move more earth and soil than glaciers, wind erosion, mountain building (plate tectonic uplift), and volcanoes combined. Probably the single most damaging biological organism in earths history was the human primate Thomas Midgley Jr from Beaver Falls, Pennsylvania born in 1889. He invented Freon (which destroys the Ozone layer), and also leaded gasoline, which has polluted most of the worlds soil lasting thousands of years (all of us carry elevated lead levels because of it and will continue to do so for centuries to come, leading to birth defects, lowered IQs, etc..). Midgley contracted Polio at age 51 and invented a system or ropes and pulleys to move his crippled body off the bed - he became tangled and was strangled to death in 1944 by his own invention, before learning how damaging his inventions were. ( )