Environmental photographer James Balog created The Extreme Ice Survey to document the loss of glaciers. The movie Chasing Ice is the story of his mission to change the tide of history by gathering undeniable evidence of climate change using time-lapse cameras.  I saw this movie last spring, and recommend seeing it on a big screen — the images are breathtaking.  Now is your chance, as it is playing at the Music Box Theatre in Chicago through this Thursday, November 22.  For details, click here.