Patagonia founder Yvon Chouinard made headlines recently when he announced that he and his family had transferred their $3 billion stake in the storied outdoor gear company to a special purpose trust and nonprofit that would give away $100 million a year, specifically to environmental causes. Patagonia has a long history of donating at least one percent of its profits—and 100 percent of profits made on Black Friday—to grassroots environmental nonprofits. Yet even with this massive gift, and Laurene Powell Jobs’ own recent $3.5 billion pledge, climate philanthropy still only accounts for a small fraction of all charitable giving.

This week, we look back to our 2016 interview with Yvon Chouinard and bring the story up to date with Inside Philanthropy’s Michael Kavate.