1 - The dry valleys of Antarctica appear to be devoid of life, but digging in the ground reveals a startling discovery -- roundworms, which tell the tale of climate change.

2 - Research into deposits of the Egyptian Nile indicate that a long dry period in the mountains at the river's source may have led to a lack of water for irrigation around 2180 BC.

3 - In spite of the dry climate and the scarcity of flat land, until recently Italy relied heavily on agriculture.

4 - Concerns about the greenhouse effect, smog and energy security have led to increasing interest in energy sources such as hot dry rocks, wave power and hydrogen.

5 - Dry and damaged hair may indicate that you are missing some essential nutrients in your day to day diet.