Last updated: 3 december, 2010 - 12:23 GMT
Qatar 2022: How to build comfortable stadiums in a hot climate
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Qatar won its bid to host the 2022 Fifa World Cup.
The Sun's heat cools water by a process known as absorption chilling
How will it be possible to play football in the small Arab country where summer temperatures typically reach the mid 40s Celsius?
The answer is a lot of refrigeration and solar power.
The designers claim that as a result, the stadium will be carbon neutral.
Michael Beaven, from the engineering firm Arup, is one of the architects responsible.
First broadcast 3 December 2010
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