London 2012 will be the greenest Olympic Games to date

The Olympic Park

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6 August 2012 Last updated at 05:33 ET Help

With hundreds of thousands of people streaming into Olympic venues, it was always inevitable that an awful lot of rubbish would be created.

However, the organisers of London 2012 have promised these Games will be the most environmentally friendly ever.

The BBC's Katya Adler reports.

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