shadows of camels

The shadows of camels are cast on a sand dune in a stretch of desert steadily creeping south from the Sahara, some 100 kilometers (60 miles) north of the capital Dakar, April 7, 2007. Climate experts issued their starkest warning yet about the impact of global warming, ranging from hunger in Africa to a fast thaw in the Himalayas, in a report on Friday that increased pressure on governments to act.

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