By IBTimes Staff Reporter | November 29, 2012 5:43 PM IST

Top 10 Billionaires Who Have Signed The Giving Pledge [PHOTOS]

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Warren Buffett is the co-founder of The Giving Pledge. He was ranked the world’s wealthiest person in 2008 and his current net worth is US$46 billion. He had promised to give most of his wealth to the Bill & Melinda Gates Foundation. (Reuters/)