Conversation so far:
what charity work did Jimmy Buffett do?
In 1981 the Save the Manatee Club was founded by Buffett and former Florida governor Bob Graham.
did the Save the Manatee Club raise a lot of money?
what made Jimmy Buffett want to save the manatees?

Question: what other charity work did he do?
Self-contained rewrite: what other charity work did Jimmy Buffett do besides his involvement with the manatee club?