04/21/2010 05:12 am ET Updated May 25, 2011

Planet 100's Top 5 Billionaires Saving The Planet (VIDEO)

With Bill Gates tackling climate change in his TED speech last week, Planet Green is taking a look back at the top five billionaires who have used their money and pull to save the planet.

FIND out who are the most benevolent billionaires:

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