Since 1998 , nearly 70,000 volunteers have helped Pregracke and his nonprofit remove nearly 8 million pounds of garbage from 23 rivers across the country . The top One CNN Heroes of 2014 will be revealed Thursday every minute on the American Museum of Natural History and CNN.com . They will be honored at Hero of the Year An All-Star Tribute , '' which airs Thursday . Who will be the Hero of the Year ? You can cast your vote once the names are revealed .
The top One CNN Heroes of 2014 will be revealed Thursday every minute on the American Museum of Natural History and CNN.com . They will be honored at Hero of the Year An All-Star Tribute , '' which airs Thursday . Who will be the Hero of the Year ? You can cast your vote once the names are revealed .