When photographer Camille Seaman stood on the Ross Ice Shelf in Antarctica, she felt dizzy. It was 200 feet down to the sea, and below sea level was another 800 to 1,000 feet of ice. And all this, she thought, was made by one snowflake falling on another, through time.
On The Forum, Bridget Kendall finds out more about the ice masses of the polar ice caps. Along with Native American artist Camille Seaman, she is joined by the Danish glaciologist Poul Christoffersen, who's been measuring the effects of a warming ocean on that very ice shelf, and American engineer Mary Albert who drills down into ancient snow cores for crucial climate clues.
Photo: Breaching Iceberg – Greenland, August 8, 2008 © Camille Seaman