The Sermilik fjord is choked with massive icebergs sloughing off the rapidly-receding Helheim glacier. “It’s impossible here to go in a straight line, or even to zigzag around all of the ice, says oceanographer Fiamma Straneo. "You just have to relax and know that you're gonna hit some of it.” Straneo says the ship will be fine. What matters is the mission — to find the tiny clues that help fill in the big picture of climate change in the region. Greenland, 2015. Image by Ari Daniel.