Over repeated visits to northern climes, he could see for himself that these long-lived ice-sheets were shrinking, but he realised the only way to quantify their decline was to record it over a period of time. Jeff Orlowski’s otherwise unassuming documentary takes the viewer on that journey too, as frozen cameras and Balog’s wrecked knee-joints provide modest nuggets of drama before the film’s raison d’être: staggering images of massive glaciers in Alaska and Greenland melting away before our eyes like ice-creams on a hot pavement.
Still an eco-sceptic? Clap your eyes on this lot. Awe-inspiring, terrifying, transcendently beautiful, and absolutely weighted with significance for the future of the planet. The term ‘game changer’ barely does the film justice.