Is och himmel

La glace et le ciel

...Luc Jacquet pays handsome tribute to Claude Lorius, whose snow chemistry analysis underpinned early climate change theories.

...an extraordinarily engaging documentary that boasts spectacular vistas, breathtaking adventures, on-camera plane crashes and scientific revelations, fuelled by a heady mix of kerosene, whisky and vodka.

This is not a film which uses statistics to back up a hysterical climate change polemic, but a document of the painstaking task that was undertaken to actually discover these chilling statistics in the first place.