A Chinese farmer walks amid a heavy sand storm in Minqin county, in China's Gansu province. Northern China, parts of the US, the Sahel in Africa, the Middle East and Australia are all prone to severe dust storms which routinely travel thousands of miles and on occasion have been found to travel twice round the world in the upper atmosphere. Chinese scientists have linked the increasingly severe storms of the last decade to massive deforestation and over-exploited water resources in southern and eastern China
Photograph: China Daily/AP
The Guardian
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