Alley, Richard B. <br/><br/>
The Two-Mile Time Machine  Ice Cores, Abrupt Climate Change, and Our Future 

 - Princeton  Princeton University Press  2014 
 - 229 p. 
 - Princeton Science Library .
<br/><br/>  In the 1990s Richard B. Alley and his colleagues made headlines with the discovery that the last ice age came to an abrupt end over a period of only three years. In The Two-Mile Time Machine, Alley tells the fascinating history of global climate changes as revealed by reading the annual rings of ice from cores drilled in Greenland. He explains that humans have experienced an unusually temperate climate compared to the wild fluctuations that characterized most of prehistory. He warns that our comfortable environment could come to an end in a matter of years and tells us what we need to know in 
<br/><br/><br/>Online-Ausg. 
<br/><br/><label>ISBN: </label>9780691160832 
<br/><br/><label>Subjects--Index Terms: </label>Paleoclimatology  Climatic changes  Climate Change  Greenland 
<br/><br/><label>LC Class. No.: </label>QC884 .A384 2014 
<br/><br/><label>Dewey Class. No.: </label>577.22