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The world's second-richest man has pledged to give more than £20bn to charity.
Multi-billionaire investor Warren Buffett has announced plans to give the bulk of his wealth to five charitable foundations.
The 75-year-old chairman of investment firm Berkshire Hathaway is worth an estimated £23bn.
The biggest beneficiary will be the foundation set up by the only man richer than Buffett - Microsoft founder Bill Gates.
The Bill and Melinda Gates Foundation already has assets of around £16bn and has given millions to a wide range of good causes, including fighting HIV/Aids in Africa and improving education in the US.
Mr Buffett's announcement comes after he had previously said that the money would be pledged after his death.