American Environmental Scientist Named the 2011 Stockholm Water Prize Laureate

STOCKHOLM, Sweden, March 22, 2011 - Stephen R. Carpenter, Professor of Zoology and Limnology at the
University of Wisconsin-Madison, USA, will receive the 2011 Stockholm Water
Prize. This announcement was made today in connection with the UN World Water
Day. Professor Carpenter's groundbreaking research has shown how lake
ecosystems are affected by the surrounding landscape and by human activities.
His findings have formed the basis for concrete solutions on how to manage
lakes.

For full press release, translations, background facts, photos and video
material, visit: www.siwi.org/SWP2011

Born in 1952, Professor Carpenter is recognised as one of the world's
most influential environmental scientists in the field of ecology. By
combining theoretical models and large-scale lake experiments he has reframed
our understanding of freshwater environments and how lake ecosystems are
impacted by humans and the surrounding landscape.

The Stockholm Water Prize Nominating Committee emphasises the importance
of Professor Carpenter's contributions in helping us understand how we affect
lakes through nutrient loading, fishing, and introduction of exotic species.

"Professor Carpenter has shown outstanding leadership in setting the
ecological research agenda, integrating it into a socio-ecological context,
and in providing guidance for the management of aquatic resources," noted the
Committee.

Professor Carpenter is best known for his research on trophic cascades in
lakes - a concept which describes how impacts on any species in an ecosystem
will cascade down, or up, the food chain. Known amongst his peers in the
scientific community for his creativity and enthusiasm, Professor Carpenter's
work combines different scientific disciplines and approaches. By seeking
collaboration outside of academia, he has managed to link research to both
policy and practice.

On receiving the news, Professor Carpenter said:"I am thrilled. Many
great people have received the prize over the years, and there are many
others whose work is worth rewarding. It is a great honour to be selected.
The prize will increase my resolve and sense of obligation to work on
emerging issues of freshwater, such as climate change and the connections of
food and water security."

H.M. King Carl XVI Gustaf of Sweden will present the prize to Professor
Carpenter at a royal award ceremony during the World Water Week in Stockholm
on August 25. The Stockholm Water Prize is a global award presented annually
by the Stockholm International Water Institute. The Stockholm Water Prize
Laureate receives USD 150,000 and a crystal sculpture specially designed by
Orrefors.

PRESS INFORMATION

For background facts, translations, photos and video, see:
www.siwi.org/SWP2011

For more information and interview requests, contact: Britt-Louise Andersson, SIWI, +46-8-522-139-72, britt-louise.andersson at siwi.org; Rami Abdelrahman, SIWI, +46-8-522-139-96, rami.abdelrahman at siwi.org