Nestled between jagged mountain peaks in Nahanni National Park Reserve, N.W.T., the Bologna Glacier stores water and serves as a smooth transportation corridor for animals like caribou, porcupines and wolverines. But, like ice all over the world, it's melting and shrinking in the warming climate, leaving the future uncertain for creatures that travel across it and ecosystems that exist below it — including the South Nahanni River, to which its melt water flows.