Nor any drop to drink. The Samuel Taylor Coleridge epic The rime of the ancient mariner was referring to the plight of a sailor with an ample supply of sea water but nothing drinkable to survive for days and weeks at sea. Desalination plants around the world are attempting to make good drinkable water from the sea supply. But on 'dry' land and in both developed and developing countries, droughts and floods - arch enemies at opposite ends of the water spectrum - play havoc with…
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