This book is a progress report on abrupt climate change. We're worried about the extinction of the polar bear because the climate has gotten 5 degrees warmer over the last century. As the earth climate continues to warm (and it will do so without our ...  Read More

The author's scientific personality shines through. He welcomes dissent and like all good scientists realizes that it is the road to progress. Water vapor is.

Alley articulates and delineates -- down to the last cubic centimeter -- what ice core history has to tell us. The author clearly and simply describes many of the methods used to analyze ice cores. Likely reasons of abrupt changes in earth's history s...  Read More

The scientific record of the greenland ice cores shows that when climate change does occur, it can be both quick and extreme. The two-mile time machine is a fascinating look into one of the most important scientific endeavors in recent history, the ex...  Read More

An excellent book to explain the problems of assessing past temperatures over very long times. This is the book that every ill informed environmental and agenda driven policy wonk should read regarding climate.

Alley's prose is some of the worst i have ever read. I was nauseated. This has some really valuable data in it, but lord all mighty was deciphering what the author was saying incredibley difficult.

My 5 year old granddaughter has a bird feeder and can now easily identify the birds that visit each day. They are handy to keep in the car or backpack.