Despite wars, disease and climate change, billionaire Microsoft co-founder Bill Gates says he's optimistic that humans' lives ...

Elon Musk challenged Bill Gates' claims that gutting USAID would result in millions of deaths.

The world of philanthropy is abuzz this week following the Gates Foundation’s announcement Thursday that it will ramp up its ...

Bill Gates and Elon Musk, two of the world’s richest individuals, have publicly disagreed over their differing views on ...

Bill Gates has issued some pretty big warnings in recent years — about the next pandemic or avoiding a "climate disaster" — but the billionaire says he's actually very optimistic about the future.