Conservation project documents shrinking glaciers

Ned LeBlond and Jonathan Byers launched the Alpine of the Americas Project, which combines their passion for photographing the outdoors with their interest in science.

They scale mountain ranges and crowd-source photos from North to South America that locate exactly where historic photos of glaciers were taken, and capture images that show how much the environment is changing.

Dana Glacier, 1903

The Dana Glacier, in Mono County, Calif., is seen here in the early 20th century.

Dana Glacier, 2012

California's Dana Glacier, photographed by the Alpine of the Americas Project, is much smaller in this image from 2012.

Lago Dickson and Glacier Stokes, 1904

Located in southern Chile in the Torres Del Paine National Park, Lago Dickson is a glacially fed lake that flows into the Paine River in Chile.

Lago Dickson and Glacier Stokes, 1945

Chile's Lago Dickson and Glacier Stokes is seen here in 1945.

Lago Dickson and Glacier Stokes, 2012

Chile's Lago Dickson and Glacier Stokes is visibly smaller in this contemporary photograph by the Alpine of the Americas project.

Glacier Frias, Mount Tronador, 1942

Glacier Frias is located on the border of Chile and Argentina and stands in two national parks, Vicente Perez Rosales in Chile, and Nahuel Huapi in Argentina.

Glacier Frias, Mount Tronador, 2012

South America's Glacier Frias and Mount Tronador photographed by the Alpine of the Americas Project.

Monte Fitz Roy and Rio Blanco, 1945

Located on the border of Argentina and Chile in the Southern Patagonian Ice Field, Fitz Roy is one of the most technically challenging peaks on Earth for mountaineers.

Monte Fitz Roy and Rio Blanco, 1945

Monte Fitz Roy and Rio Blanco in Patagonia, photographed by the Alpine of the Americas Project.