Other Images in this Gallery
-
-
Mining operations in the Klondike in 1899. (Photo: John McLain)
-
-
Junior mining exploration geologists examine a possible find. (Photo: Eastmain Resources, Inc.)
-
-
-
-
-
-
The Sudbury regreening effort is pictured here. The photo on the right shows the Coniston Hydro Road in 1981 and at left is the same road in 2008. (Photo: Nicole Marzok (ICLEI Canada))
-
-
Electricity-generating wind turbines contain pure rare-earth metals. (Photo: © Raquel Pedrosa | Dreamstime.com)