Glacier calving in Patagonia.

Glacier calving in Patagonia.

Boom!!

Falling ice; The Perito Moreno Glacier in Argentina calves blocks of ice into Lago Argentino http://flic.kr/p/q6EceU

Iceberg Arch, Antarctica

Iceberg Arch, Antarctica; The sun lights an arch in a vast tabular iceberg. http://flic.kr/p/nw7y8K

Tabular iceberg

Tabular iceberg; Tabular iceberg from the Weddell Sea covered in Chinstrap and Gentoo penguins. South Shetlands, Antarctica, December 2012 http://flic.kr/p/dShVbw

Tabular iceberg

Tabular iceberg; Tabular iceberg from the Weddell Sea covered in Chinstrap and Gentoo penguins. South Shetlands, Antarctica, December 2012 http://flic.kr/p/dShT5u