Photos of climate change on show

CHICAGO - For the last decade, American photographer James Balog has been on a mission to document climate change through his camera lens.

His effort has taken him to the farthest reaches of the world, from Antarctica to the northern ends of Greenland, where he has captured the movements and melts of immense glaciers.

The results of his work are on display at Chicago's Museum of Science and Industry at the show Extreme Ice.