In Chasing Ice what proxy is James Balogtrying to record? What is he trying to document?

Answer and Explanation:

In Chasing Ice, Balog set time-laps cameras to secure a multi-year record of the world's evolving glaciers. His great recordings converts very long time into seconds and catch antiquated heaps of ice moving as they crumples at an amazing rate. He wanted to document the world's changing glaciers with his camera