Chasing Ice is a 2012 documentary film about the efforts of nature photographer James Balog and his Extreme Ice Survey to publicize the effects of climate change, directed by Jeff Orlowski. It was released in the United States on November 16, 2012.The documentary includes scenes from a glacier calving event that took place at Jakobshavn Glacier in Greenland, lasting 75 minutes, the longest such event ever captured on film.