Photo: Melody Sky, Verbier

Photo: Aaron Jamieson, nisekophotography.com

Photo: Meghan Kelly, Greenland, Shifting Ice and Changing Tides

Photo: Aaron Jamieson, nisekophotography.com

Photo: Simon Ponter, Chamonix

Photo: Drew Wilson

Photo: Jay Goodrich, Jackson Hole jaygoodrich.com

Photo: Rylan Schoen, Utah

Photo: Drew Wilson

Photo: Aaron Jamieson, nisekophotography.com

Photo: Meghan Kelly, Greenland, Shifting Ice and Changing Tides

Photo: Abby Dell http://abbydellphotography.com/

Photo: Melody Sky, timelinemissons.com

Photo: Rylan Schoen, Utah

Photo: Dan Milner, Chamonix

Photo: Drew Wilson

Photo: Abby Dell http://abbydellphotography.com/

Photo: Jay Goodrich, Jackson Hole jaygoodrich.com

Photo: KT Miller, Greenland, Shifting Ice and Changing Tides

Photo: Aaron Jamieson, nisekophotography.com

Photo: Jay Goodrich, Jackson Hole jaygoodrich.com

Photo: KT Miller, Greenland, Shifting Ice and Changing Tides

Photo: Neil Kerr, Treble Cone, NZ

Photo: Haukur Sigurðsson https://www.flickr.com/photos/haukurr/

Photo: KT Miller, Greenland, Shifting Ice and Changing Tides

Photo: Jay Goodrich, Jackson Hole jaygoodrich.com

Photo: Camilla Rutherford, Franz Joseph Glacier, NZ http://www.camillarutherford.co.nz

Photo: Neil Kerr, Treble Cone backcountry, NZ

Photo: Aaron Jamieson, nisekophotography.com

Photo: Dan Milner, Chamonix

Photo: Camilla Rutherford, Franz Joseph Glacier, NZ http://www.camillarutherford.co.nz

Photo: Meghan Kelly, Greenland, Shifting Ice and Changing Tides

Photo: Jay Goodrich, Jackson Hole jaygoodrich.com

Photo: Camilla Rutherford, Franz Joseph Glacier, NZ http://www.camillarutherford.co.nz

Photo: KT Miller, Greenland, Shifting Ice and Changing Tides