<p>Under a night sky, an ice climber thwacks his way up the ice of Athabasca Glacier, which is rapidly retreating due to warmer temperatures.</p>
Photograph by Paul Zizka, Aurora
Under a night sky, an ice climber thwacks his way up the ice of Athabasca Glacier, which is rapidly retreating due to warmer temperatures.
Seven adventures disappearing on a changing planet
To celebrate Earth Day, check out unique adventures threatened by human impact on each continent
For almost half a century, Earth Day has served as a moment to stop and consider our planet—both its wonders and its health. For those, who yearn to experience some of its most remote natural splendors first hand, here’s a selection of photos of great adventures to be had on each continent in places that are threatened by human impacts.