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Sweden is full of lakes and rivers and in the capital Stockholm you can easily spend a day hopping from island to island on one of the city's many ferries. Appropriate, then, that it's hosting World Water Week when thousands of people from over 100 countries will exchange ideas about water-related challenges. At a time when Texas is in crisis following devastating floods and after a year when Sweden itself has faced a drought - there is a lot up for discussion, as Elizabeth Hotson reports. Picture: Wang Zhao/ Getty Images
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