Distinguished University Professor at the University of Maryland College Park and at Johns Hopkins University Bloomberg School of Public Health
Eleventh director of the National Science Foundation (NSF) from 1998 to 2004
2006 National Medal of Science (given by President George W. Bush)
2006 “Order of the Rising Sun, Gold and Silver Star,” Japan Society for Promotion of Science
2010 Stockholm Water Prize Laureate
2016 Malaysian Academy of Science Mahthir Science Award for Scientific Excellence in Work in the Tropical Regions
2018 Lee Kuan Yew (Singapore) Water Prize