Bill Gates, concerned about the “significant suffering” caused by global setbacks including the COVID-19 pandemic, announced Wednesday that he will donate $20 billion to his foundation so it can increase its annual spending. The donation, combined with longtime board member Berkshire Hathaway CEO Warren Buffett's $3.1 billion gift last month, brings The Bill and Melinda Gates Foundation's endowment to approximately $70 billion, making it one of the largest, if not the largest in the world, depending on daily stock valuations.