William and Rosemarie Alley are a husband and wife team, writing for the general public on Earth science issues confronting society. As a leading expert in the field of hydrogeology, Dr William M. Alley has won numerous awards for his work, including the U.S. Geological Survey (USGS) Shoemaker Award for Lifetime Achievement in Communication and the Meritorious Presidential Rank Award. Dr Alley served as Chief of the Office of Groundwater for the USGS for almost two decades and oversaw the Yucca Mountain Project from 2002 to 2010. Rosemarie Alley has a Master's degree in special education. As a literacy specialist, she has taught young adults with language delays and conducted numerous reading workshops for teachers, administrators and parents.