The Goldman Environmental Foundation announced the recipients of the 2012 Goldman Environmental Prize in San Francisco Monday.
The prize has been awarded annually to "grassroots environmental heroes" from each of the world's six inhabited continental regions, a foundation release said.
It is the largest award for grassroots activism, with an individual cash prize of $150,000 to each recipient, it said.
Winners of the annual prize, established in 1989 by the late San Francisco civic leaders and philanthropists Richard and Rhoda Goldman, were selected by an international jury from confidential nominations submitted by a worldwide network of environmental organizations and individuals, the foundation release said.
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