Dave من عند 35535 Bayraklı/ازمير، تركيا من عند 35535 Bayraklı/ازمير، تركيا

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Alley is a geologist at Pennsylvania State University who was done work in Greenland taking ice cores from the glaciers. These ice cores have layers in them that can be dated. The chemical composition of the ice, and of air trapped in bubbles in the ice can provide information on the climate and atmospheric composition thousands of years ago. This book, a tie-in to a televison series, is about climate change. The book is roughly divided into two parts: evidence for climate change, and what to do about it. I got to about page 209, roughly the start of the "what to do about it" portion. In the first part on the science, Alley explains the evidence for climate change and deals with controversies about the evidence and the unflattering e-mails produced by some climate scientists in Britain. The book is very well referenced. Many graphs and pictures are used to make the points. Generally Alley writes clearly, though sometimes I got lost. I suspect that a more mathematical approach, such as in George Philander's "Is the temperature rising?" might be clearer. However, I have not finished that book either. From flipping through the book, the second part appears to be focused on modifying energy useage in order to reduce climate change. As someone who loves gadgets, perhaps I should have started here. Topics such as solar energy, nuclear power, and so forth are discussed. One question I have about all these books is why people bother writing them. I see no evidence that the United States or other developed countries, or countries such as China or India, are willing to do anything to ameloriate climate change. The United States has twice (the failure of the Kyoto treaty in the Senate in the 1990s and the failure of the cap and trade legislation during the first two years of the Obama administration) had the opportunity to pass legislation to deal with climate change and has declined to do so. It appears that we find out through direct experience the accuracy of climate projections, rather than trying to ameliorate climate change.