JAMES Balog was a National Geographic photographer celebrated for his wildlife shots. He then went on assignment to the Arctic and saw scenes that were to change his outlook and career. What Balog witnessed was the melting of the glaciers, an experience documented in a landmark copy of the magazine with the cover line "The Big Thaw". Unable to leave the story behind, Balog, as Jeff Orlowski's Oscar-shortlisted film shows, carried on taking pictures and, converting them to time-lapsed film, went on a lecture tour to show how the Arctic landscape was disappearing. The images, as you would expect, are stunningly beautiful even while they are hugely disturbing. The talking heads from science are just as impressive, and convincing, making this one film that's impossible to ignore.
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