Men­den­hall Glacier, Juneau, Alaska

BBC Earth (Asia) - - Contents - PHOTO: Caters News

Stun­ning snaps from across the fields of his­tory, na­ture or sci­ence

Alaska’s land­scape is trans­form­ing rapidly. Gla­cial caves, like the one pic­tured here, form as the ice melts in the warmer months and wa­ter bur­rows its way to­wards the ground. A stream gath­ers at the base and its warmth carves a tun­nel through the glacier as it drives to­wards its ter­mi­nus, in this case a lake. Ev­ery sum­mer, this melt causes the glacier to nat­u­rally re­cede up the moun­tain, but as Alaska’s cli­mate changes the ice re­treats fur­ther and fur­ther up­wards, tak­ing the caves with it.

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