This biography will introduce readers to the causes behind this actor's talent and fame. In addition to being an award-winning actor, Leonardo DiCaprio has been involved in several endeavors to better our planet. DiCaprio participated in an environmental documentary entitled "Before the Flood." His efforts to educate the masses on the consequences human life has on our planet are seen most in his position as a U.N. Messenger of Peace. The Leonardo DiCaprio Foundation strives to mitigate and reverse negative human impacts. DiCaprio has used his fame and influence to inform people of the dangers of global warming and the loss of biodiversity.