Photograph of an Arctic tern standing near a nest site at Alexandra Fiord, Ellesmere Island
Photograph of an Arctic tern standing near a nest site at Alexandra Fiord, Ellesmere Island
Photograph of an Arctic tern standing near a nest site at Alexandra Fiord, Ellesmere Island
Photograph of an Arctic tern standing near a nest site at Alexandra Fiord, Ellesmere Island
Photograph of an herbicide-spraying helicopter at Brier Island, Nova Scotia
Photograph of an herbicide-spraying helicopter at Brier Island, Nova Scotia
Photograph of an oil pollution control tanker truck at Alexandria Bay, New York
Photograph of an oiled blue-winged teal at Alexandria Bay, New York
Photograph of an oiled boat at Alexandria Bay, New York
Photograph of an oiled embayment at Alexandria Bay, New York
Photograph of Bill Freedman and others at Brier Island, Nova Scotia
Photograph of Bill Freedman and others at Brier Island, Nova Scotia
Photograph of Bill Freedman using binoculars on Brier Island, Nova Scotia
Photograph of Bill Freedman using binoculars on Brier Island, Nova Scotia
Photograph of coastline of Brier Island, Nova Scotia
Photograph of coastline of Brier Island, Nova Scotia
Photograph of geological formations on the coast of Brier Island, Nova Scotia
Photograph of Northern Light at Brier Island, Nova Scotia
Photograph of oil along the shore at Alexandria Bay, New York
Photograph of oil along the shore at Alexandria Bay, New York
Photograph of oil along the shore, affecting Salix babylonica, at Alexandria Bay, New York
Photograph of oil and cladophora along the shore at Alexandria Bay, New York
Photograph of oil invading a marshy embayment at Alexandria Bay, New York
Photograph of researchers at Brier Island, Nova Scotia
Photograph of the village of Westport, Brier Island, Nova Scotia
Photograph of weathered crude oil affecting Corex at Alexandria Bay, New York
Photographs of a barley osmotic stress array
Photographs of a barley osmotic stress array
Photographs of a forestry clearcutting operation near Corner Brook, Newfoundland
Photographs of a forestry clearcutting operation near Corner Brook, Newfoundland
Photographs of Abies fraseri decline and dieback, Mount Mitchell, North Carolina
Photographs of Abies fraseri decline and dieback, Mount Mitchell, North Carolina
Photographs of acid rain evidence at Killarney, Ontario
Photographs of acid rain evidence at Killarney, Ontario
Photographs of agricultural scenes in Ontario, Saskatchewan, Alberta, and Nova Scotia
Photographs of agricultural scenes in Ontario, Saskatchewan, Alberta, and Nova Scotia
Photographs of Arctic fox at Alexandra Fiord, Ellesmere Island
Photographs of Arctic fox at Alexandra Fiord, Ellesmere Island
Photographs of Arctic tern at Alexandra Fiord, Ellesmere Island
Photographs of Arctic tern at Alexandra Fiord, Ellesmere Island
Photographs of Baird's sandpiper at Alexandra Fiord, Ellesmere Island
Photographs of Baird's sandpiper at Alexandra Fiord, Ellesmere Island
Photographs of birds around Tuktoyaktuk, Northwest Territories
Photographs of birds around Tuktoyaktuk, Northwest Territories
Photographs of birds at Smoking Hills, Northwest Territories
Photographs of birds at Smoking Hills, Northwest Territories
Photographs of birds at the Headland site, Toronto
Photographs of birds at the Headland site, Toronto
Photographs of breeding birds at Alexandra Fiord, Ellesmere Island
Photographs of breeding birds at Alexandra Fiord, Ellesmere Island
Photographs of Canadian forest fires
Photographs of Canadian forest fires
Photographs of Canadian wilderness and wetland scenes
Photographs of Canadian wilderness and wetland scenes
Photographs of clearcutting and reforestation in Fundy National Park and Irving spruce plantations, New Brunswick
Photographs of clearcutting and reforestation in Fundy National Park and Irving spruce plantations, New Brunswick
Photographs of Collared lemming at Alexandra Fiord, Ellesmere Island
Photographs of Collared lemming at Alexandra Fiord, Ellesmere Island
Photographs of copper-zinc and sulfur dioxide devegetation
Photographs of copper-zinc and sulfur dioxide devegetation
Photographs of Dinosaur National Park and Banff National Park, Alberta
Photographs of Dinosaur National Park and Banff National Park, Alberta
Photographs of endangered flora and persistent coastal litter at Bon Portage Island, Baccaro and Swaine's Road bogs, Shelburne County, Nova Scotia
Photographs of endangered flora and persistent coastal litter at Bon Portage Island, Baccaro and Swaine's Road bogs, Shelburne County, Nova Scotia
Photographs of endangered plants
Photographs of endangered plants
Photographs of flora and fauna near Jasper, Alberta
Photographs of flora and fauna near Jasper, Alberta
Photographs of flora and fungi along the Magnetawan River, Ontario
Photographs of flora and fungi along the Magnetawan River, Ontario
Photographs of flora and scenery at Death Valley, California
Photographs of flora and scenery at Death Valley, California
Photographs of flora and scenery at Tuktoyaktuk
Photographs of flora and scenery at Tuktoyaktuk
