Six activists who rallied communities around the world to protect people and ecosystems against commercial exploitation will be honored in San Francisco on Monday with the most prestigious award for grassroots environmental work. The winners of the Goldman Environmental Prize include a Canadian who stopped construction of a fish-killing mine, a Honduran who rallied indigenous people to stop a giant dam and a Kenyan who shut down a smelter that was poisoning locals. The awards, established in 1989 by San Francisco philanthropists Richard and Rhoda Goldman, recognize average people around the world who have taken extraordinary action to win environmental victories.