Which billionaire joined Bill Gates in launching the Giving Pledge in 2010?

Warren Buffett joined Bill Gates in launching the Giving Pledge in 2010.

The Giving Pledge is a commitment by wealthy individuals and couples to give the majority of their wealth to philanthropy during their lifetimes or through their wills. Gates and Buffett announced the initiative in 2010 after discussions about encouraging large-scale charitable giving.

The pledge is not a legally binding contract and does not require donors to contribute to a particular organization. Instead, participants publicly state their intention to devote most of their wealth to charitable causes and often explain their motivations in letters published by the initiative.

The idea grew out of Buffett’s long-standing approach to philanthropy and his major donations to the Gates Foundation. Participants have included people from technology, finance, entertainment, and other fields, making the pledge international in scope.