Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

Johns Hopkins Glacier, Glacier Bay National Park in Southeast Alaska, United States of America

Sunset at Fjallsarlon glacier lagoon on the edge of Vatnajokull National Park, South Iceland, Iceland

Gorner Glacier on Monte Rosa massif, Zermatt, Canton Valais, Switzerland

Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

Water melting from the Briksdalsbreen glacier south of the small town of Olden in coastal Norway, Vestland, Norway

Aerial of Potter glacier, Tierra del Fuego, Chile, South America

Snaefellsjokull Glacier covered in cloud, Snaefellness Peninsula, Western Iceland