What difference do glaciers make? Well, some of them simply store water up out of the ocean (think Greenland) and keep the sea level where it’s been for the past 12,000 years or so – ya know, since the beginning of civilization.

Other glaciers, high up in the mountains, are the year-round sources of water for the world’s major rivers (think Nile, Amazon, Yangtze, Tigris, Euphrates – the rivers that nurtured civilization). Without these glaciers, growing some in the winter and melting some in the summer, these rivers will not flow year-round.

The importance of glaciers is one reason I want to see this movie. Another is that the photography looks stunning.  It opens in November.