Associated Press
In this Dec. 1, 2006 photo released by Fish Eye Films, a lone emperor penguin stands on the edge of an iceberg drift in the Ross Sea in the Antarctic. Antarctica’s Ross Sea is often described as the most isolated and pristine ocean on Earth, a place where seals and penguins still rule the waves and humans are about as far away as they could be. But even here it has proven difficult, and maybe impossible, for nations to agree on how strongly to protect the environment. (AP Photo/Fish Eye Films, John Weller) EDITORIAL USE ONLY, NO SALES, NO ARCHIVE

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