STOCKHOLM, SWEDEN (AP) -- American environmental scientist Stephen Carpenter has been named this year's winner of the Stockholm Water Prize for his research on lake ecosystems and how humans and surrounding landscapes affect them.
Carpenter is a professor in Zoology and Limnology at the University of Wisconsin-Madison in the United States.
The Stockholm Water Institute on Tuesday called him "one of the world's most influential environmental scientists," saying his research has "formed the basis for concrete solutions on how to manage lakes."
He will be awarded the $150,000 prize by Sweden's King Carl XVI Gustaf at a ceremony in Stockholm on Aug. 25.
The annual award was founded in 1991 and honors individuals and institutions for contributions to management of the world's water resources.