File contains 6 photographs taken by Bill Freedman in the Great Lakes and at Lake Winnipegosis, Manitoba, in the early-1980s. Photographs show the effects of pollution of Double-crested cormorant chicks, including examples of "addled embryos".
File contains 13 photographs taken by Bill Freedman near Thompson, Manitoba, in 1974. Photographs show Picea mariana and Picea banksiana at various distances from the factory smokestacks of a nickel processing facility. Also, a beaver dam and regrowth after a forest fire.
File contains 13 photographs taken by Todd Keith (and collected by Bill Freedman) between 1984 and 1990. Photographs show devegetation near smelter plants in Flin Flon, Manitoba and Sturgeon Lake, Ontario (Cu-Zn), Rouyn-Noranda, Quebec (Cu-Zn and SO2), and acidification of quartzite at Killarney, Ontario. Also includes a photograph by Keith of Kilauea Crater (Hawaii) and three photos of New Zealand scenery.
