Stephen S. Wanje
Dr. Wanje, a medical practitioner in Maragoli, West Kenya, promotes better farming methods as well as health care among local women farmers.
He uses his farm to demonstrate sustainable agriculture in marginal areas and provides low-cost medical care to the community.
Robert T. Watson
A British-born chemist who since 1980 has been a leader in NASA's atmospheric research programmes.
He made major scientific contributions to the Vienna Convention and the Montreal Protocol agreements for the protection of the ozone layer.
As a scientist, manager, catalyst and spokesman he continues to exert distinguished leadership in ozone layer research and in international actions increase protection of the layer.
David Alexander Weir
Founder of the Centre for Investigative Reporting and an editor at Mother Jones magazine. His articles have alerted many Americans to threats to the environment.
Mr. Weir's writings on pesticide issues - in particular "Circle of poison: pesticide and people in a hungry world", co-authored by Mark Shapiro, and "The Bhopal syndrome: pesticides, environment and health" have increased public awareness of the potential dangers of chemicals.
Mr. Werikhe raised nearly US $1 million for rhino conservation in his sponsored walks in 1982, 1985 and 1988 which covered nearly 5,000 km in Kenya and several European countries. His "walks for the rhino" significantly increased awareness and influenced public opinion in Kenya and Europe.
He is a rare example of an African grassroots activist in a field usually dominated by expatriate scientists.
Ram Prit Yadav
Mr. Yadav conducted the surveys, which in 1973 led to establishment of the first national park in Nepal, Royal Chitwan National Park, and two other protected areas.
He played a leading role in the subsequent establishment of a breeding centre for the then threatened slender-snouted crocodile - the gharial - which has since thrived.
Michael Alexandrovitch Zablotsky
A Soviet zoologist famed for his long pioneering work in breeding programmes for the endangered European bison. His work, frequently in very difficult circumstances, has led to greater protection of the bison and establishment of breeding centres in Russia.
Alcoa of Australia Limited
For more than 20 years the company has carried out a mine rehabilitation programme in the south-west of Western Australia.
This covers four bauxite mining areas in a unique forest region and three associated alumina refineries. This programme integrates overall environmental protection with industrial development.
Mary Zanoni Allegretti
Since 1980 Ms. Allegretti has worked with Brazil's National Council of Rubber Tappers, led by the late Francisco Mendes Filho, for the preservation of the Amazonian forests and the organization of its peoples to seek their rights.
A journalist with Gynaika, the leading women's magazine in Greece. Since 1975, she has influenced public opinion through her writing on ecosystems, global climate, hazardous wastes, desertification, wildlife, pollution of the seas and birth defects caused by pollution.
Arthur Beresford Archer
An environmental engineer and a pioneer in promoting sound environmental management in Barbados.
Since 1971, he has played an important role in advancing the cause of the environment and in mobilising action towards solutions at the national and Caribbean regional levels.
He organized and managed the environmental engineering division, marine water quality monitoring service, Barbados' first oil spill contingency plan, air and ground water pollution studies, initiated the occupational health monitoring service in the ministry of health in Barbados, and the environmental and health protection requirements of physical developments.