In 2010, Microsoft cofounder Bill Gates and his then-wife Melinda French Gates, along with fellow billionaire and Berkshire Hathaway CEO Warren Buffett, started the Giving Pledge: a movement encouraging billionaires to donate at least half of their wealth during their lifetimes or at death. More than 250 of the world’s wealthiest have signed the pledge, but many have so far failed to live up to it.
“Have they given enough? No,” French Gates said in an interview with Wired published Tuesday.
