By Rory O'Neill Jan 6, 2021 Billionaires raked in billions more in 2020, but a new report shows they weren't as generous when it comes to charitable donations. The Chronicle of Philanthropy is out with its annual ranking of top charitable contributions. Amazon founder Jeff Bezos pledged $10-billion of his personal fortune to help fight climate change. The donation comes as his net worth grew by $70-billion between March and December thanks to a business boom fueled by the pandemic. According to The Observer, the Chronicle found that the sum of the second through tenth-largest contributio...