Desertification is most often considered to be a problem afflicting poor nations. But large areas of developed nations such as the USA, Australia and Spain are also affected on a huge scale. In this film we go to Spain, where half the country is defined as 'arid' or 'semi-arid'. In these dry regions almost a third of the land is defined as either severely or moderately desertified. The main problem is the escalating demand for water: 50% of the ...
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